Pandigital number: A115939 & A115940 etc
zak seidov
zakseidov at yahoo.com
Sat Mar 18 04:14:52 CET 2006
Giovanni, Jonathan, Seqfans,
"Pandigital number" contains all (decimal in this
case) digits at least once, right?
If so the COMMENT's in A115939 & A115940 ain't OK,
(while A111482 is OK anyway), right?
Some other Giovanni's sequences which include
pandigital's also may be checked in the respect of
"finiteness" of pandigital's, right?
ATB(=All the best),
Zak
--- Giovanni Resta <g.resta at iit.cnr.it> wrote:
A115939 Numbers n such that the n-th triangular number
is pandigital.
46097, 49796, 50139, 55151, 55484, 56520, 58050,
COMMENT There are 82 such numbers, the largest being
138959.
AUTHOR Giovanni Resta, Feb 06 2006
A115940 Pandigital triangular numbers.
1062489753, 1239845706, 1256984730, 1520843976,
COMMENT There are 82 such numbers, the largest being
T(138959)=9654871320.
AUTHOR Giovanni Resta, Feb 06 2006
A111482 Least triangular number whose digits include a
permutation of {0,1,...,n}.
0, 10, 120, 12403, 12403, 231540, 1053426, 10623745,
120784653, 1062489753
AUTHOR Jonathan Vos Post, Nov 15 2005
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