A256397 Primes congruent to {17, 23} mod 24.

17, 23, 41, 47, 71, 89, 113, 137, 167, 191, 233, 239, 257, 263, 281, 311, 353, 359, 383, 401, 431, 449, 479, 503, 521, 569, 593, 599, 617, 641, 647, 719, 743, 761, 809, 839, 857, 863, 881, 887, 911, 929, 953, 977, 983, 1031, 1049, 1097, 1103, 1151, 1193

Offset

1,1

Comments

All these primes do not divide any number of the form 2^k + 3. Therefore, they are not in A256396.

Links

Table of n, a(n) for n=1..51.

Formula

A107181 UNION A134517.

Mathematica

Select[Prime@Range[196], MemberQ[{17, 23}, Mod[#, 24]] &]

Prog

(Magma) [p: p in PrimesUpTo(1193) | p mod 24 in {17, 23}];
(PARI) select(p->my(k=p%24); k==17||k==23, primes(1000)) \\ Charles R Greathouse IV, Jun 03 2015

Crossrefs

Cf. A107181, A134517, A256396.

Sequence in context: A156567 A231332 A243137 * A139843 A151953 A102874

Adjacent sequences: A256394 A256395 A256396 * A256398 A256399 A256400

Keyword

nonn

Author

Arkadiusz Wesolowski, Jun 03 2015

Status

approved