A088460, A088463 edits

[David Wilson]

Here are my corrected and cleaned up versions of A088460 and A088463 for the editors' approval.

I have gotten rid of the "twipls" and "twipus" names. IMHO, unless these sequences become the center of serious research, the OEIS A-numbers will do.

I have reindexed the sequences starting at 1. This seems to be the natural indexing for these sequences, especially in light of the formulae.

I have added formulas.

I have replaced voluminous comments with shorter ones that are effectively equivalent.

%I A088460

%S A088460 11,29,137,239,641,1151,1931,2339,3851,4091,5639,6359,8231,9011,9431,

%T A088460 11351,12161,14561,15731,17837,20441,25931,26951,29207,33767,37781,40847,

%U A088460 42407,44381,46439,59471,60917,61979,65171,67427,80831,81929,83339

%N A088460 Lower twin primes of lower twin prime index

%F A088460 A001359(A001359(n))

%C A088460 a(n) == 5 (mod 6)

%o A088460 (PARI) a(k) = { for(x1=1,k, print1(twinl(twinl(x1))",") ) } twinl(n) = { c=0; x=1; while(c<n, if(isprime(prime(x)+2),c++); x++; ); return(prime(x-1)) }

%Y A088460 A001359

%K A088460 nonn,uned

%O A088460 1,1

%A A088460 Cino Hilliard (hillcino368(AT)hotmail.com), Nov 12 2003



%I A088463

%S A088463 31,61,181,283,811,1279,1999,2551,3931,4159,5659,6553,8389,9241,9463,

%T A088463 11551,12253,14629,15889,17923,20509,26113,27109,29401,33829,37993,

%U A088463 41179,42571,44623,46681,59671,61333,62143,65449,67759,81019,82009

%N A088463 Upper twin primes of upper twin prime index

%F A088463 A006512(A006512(n))

%C A088463 a(n) == 1 (mod 6)

%o A088463 (PARI) a(k) = { for(x1=1,k, y1=twinu(twinu(x1)); print1(y1",") ) } twin(n) = { c=0; x=1; while(c<n, if(isprime(prime(x)+2),c++); x++; ); return(prime(x)) }

%Y A088460 A001359

%K A088463 nonn,uned

%O A088463 1,1

%A A088463 Cino Hilliard (hillcino368(AT)hotmail.com), Nov 12 2003
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