A173167 Values n such that n and n+1 are both in A037073.

1, 7, 14, 99, 162, 252, 330, 376, 750, 966, 1022, 1079, 1637, 2156, 2288, 2352, 3389, 4530, 4633, 4975, 5514, 6125, 6126, 6622, 6938, 7215, 7489, 8182, 8252, 8293, 10528, 10837, 11332

Offset

1,2

Links

Table of n, a(n) for n=1..33.

Example

a(1)=1 because 18*(A037073(1)+1/2-1/2)^2-1=17=prime, 18*(A037073(1)+1/2-1/2)^2+1=19=prime, 18*(A037073(1)+1/2+1/2)^2-1=71=prime and 18*(A037073(1)+1/1+1/2)^2+1=73=prime.

Crossrefs

Cf. A037073.

Sequence in context: A117867 A291008 A196254 * A143682 A369562 A080451

Adjacent sequences: A173164 A173165 A173166 * A173168 A173169 A173170

Keyword

nonn

Author

Juri-Stepan Gerasimov, Feb 11 2010

Extensions

Definition corrected and sequence extended beyond a(8) by R. J. Mathar, Mar 09 2010

Status

approved