A354026 Primes that divide some k dividing 4^k + 3^k (A045584).

7, 379, 14407, 689431, 4235659, 41647747, 137534083, 239900179, 242121643, 349909477, 1245283747, 1478065891, 1605314383, 2500276549, 2748751303, 5618210347, 7490947129

Offset

1,1

Comments

Prime p > 3 is in this sequence iff all prime factors of the multiplicative order of -3/4 modulo p belong to this sequence.

Links

Table of n, a(n) for n=1..17.

Prog

(PARI) forprime(p=5, oo, f=Set(factor(znorder(Mod(-3/4, p)))[, 1]); if(#setintersect(S, f)==#f, S=setunion(S, [p]); print1(p, ", ")) );

Crossrefs

Cf. A045584, A023394, A066364, A087807, A129729, A134360, A171980, A354027.

Sequence in context: A250345 A201114 A027510 * A232454 A140638 A367868

Adjacent sequences: A354023 A354024 A354025 * A354027 A354028 A354029

Keyword

nonn,more

Author

Max Alekseyev, May 15 2022

Status

approved