A161973 Primes in A136251 in order of appearance.

3, 7, 3, 7, 3, 5, 3, 5, 2, 7, 3, 3, 3, 3, 7, 5, 3, 13, 11, 3, 7, 3, 3, 5, 5, 13, 7, 5, 2, 11, 13, 2, 5, 17, 13, 7, 3, 7, 3, 7, 19, 7, 5, 3, 3, 13, 3, 7, 7, 3, 11, 3, 19, 11, 17, 3, 3, 5, 5, 5, 7, 5, 17, 5, 17, 7, 11, 19, 5, 17, 13, 19, 13, 11, 7, 3, 7, 2, 11, 3, 3, 3, 7, 13, 5, 3, 13, 2, 3, 7, 3, 11, 7

Offset

1,1

Links

Table of n, a(n) for n=1..93.

Example

The A136251(k) which are prime occur at k = 9, 10, 11, 12, 15, 16, 17, 18, ... and the subsequence of A136251 at these positions defines the sequence.

Maple

read("transforms") ; A007605 := proc(n) digsum(ithprime(n)) ; end:
A136251 := proc(n) ithprime(n) mod A007605(n) ; end:
for n from 1 to 300 do p := A136251(n); if isprime(p) then printf("%d, ", p) ; fi; od: # R. J. Mathar, Aug 02 2009

Crossrefs

Cf. A000040, A136251.

Sequence in context: A021732 A329341 A244191 * A010705 A244189 A375152

Adjacent sequences: A161970 A161971 A161972 * A161974 A161975 A161976

Keyword

nonn,base

Author

Juri-Stepan Gerasimov, Jun 23 2009

Extensions

Edited, corrected and extended by R. J. Mathar, Aug 02 2009

Status

approved