spelling, time, and the Index nth or n-th or both?

[zak seidov]

It'd be great if 
we all can help Neil
being more accurate...

My Q is: 
nth or n-th or both?

Here are cases 
(from Recent Additions)
with "nth":

%N A107323 If nth prime is 6m-1, then a(n) = 6m+1. If
nth prime is 6m+1, then a(n) = 6m-1.

%F A107616 Row terms of A077028 are considered as
coefficients to generating functions such that nth row
of A077028 becomes the generator for nth column of
A107616.

%N A107577 a(n)=greatest integer p such that a^p + b^p
> c^p, where (a,b,c) is the nth integer-sided triangle
listed at A107572.

%N A107576 a(n)=perimeter of nth triangle listed at
A107572.

%N A107575 a(n)=greatest sidelength of nth triangle
listed at A107572.

N A107574 a(n)=middle sidelength of nth triangle
listed at A107572.

%N A107573 a(n)=least sidelength of nth triangle
listed at A107572.

%F A106792 1 -> 12, 2 -> 13, 3 -> 1. a(n) is the nth
iteration starting at a(0) = 1.

and another 21 cases with n-th...

Zak

%%%%%%%%

--- "N. J. A. Sloane" <njas at research.att.com> wrote:
> 
> Dear Seqfans,  I spend far too much time correcting
> spelling errors, etc.
> 
> I have started a little section in the Index to the
> OEIS that lists
> some of the most common errors.  At prsent it has
> these entries:
> 
> spelling and notation , <a NAME="spell">guide to
> (start):</a>
> spelling and notation:  the following are the
> correct spellings for some words and symbol
> s that are commonly mistyped in the OEIS:
> spelling: a(n) for n-th term in sequence (not a[n])
> spelling: color (not colour - the OEIS uses U.S.
> spelling)
> spelling: dependent (not dependant)
> spelling: dissectable (not dissectible)
> spelling: e for 2.718281828... (not E)
> spelling: Fibonacci (not fibonacci)
> spelling: generalize (not generalise)
> spelling: log(n) (not ln(x) or Log[x])
> spelling: log_10(x) for logs to base 10
> spelling: neighbor (not neighbour)
> spelling: nonnegative (not non-negative)
> spelling: nonzero (not non-zero)
> spelling: occurring (not occuring)
> spelling: Pi for 3.141592654... (not pi)
> spelling: prime(n) (not p(n) or Prime(n), etc.)
> spelling: recurrence (not recurence)
> spelling: semiprime (not semi-prime)
> spelling: sin(x) (not Sin[x])
> spelling: tetranacci (not Tetranacci)
> spelling: tribonacci (not Tribonacci)
> spelling: zeros (not zeroes)
> 
> Following these simple rules will make you a better
> person (and save me time)
> 
> NJAS
> 


		
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