A253706 Primes in the 8th-order Fibonacci numbers A079262.

2, 509, 128257, 133294824621464999938178340471931877, 4596852049500861351052672455121859744010232939954169259264638023409631672658340253083284317818242062413

Offset

1,1

Comments

a(6) is too large to display here. It has 395 digits and is the 1322nd term in A079262.

Links

Table of n, a(n) for n=1..5.

Mathematica

a={0, 0, 0, 0, 0, 0, 0, 1}; step=8; lst={}; For[n=step, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], AppendTo[lst, sum]]; a=RotateLeft[a]; a[[step]]=sum]; lst

Prog

(PARI) lista(nn) = {gf = x^7/(1-x-x^2-x^3-x^4-x^5-x^6-x^7-x^8); for (n=0, nn, if (isprime(p=polcoeff(gf+O(x^(n+1)), n)), print1(p, ", ")); ); } \\ Michel Marcus, Jan 12 2015

Crossrefs

Cf. A001590, A001631, A100683, A231574, A231575, A232543, A214899, A020992, A233554, A214727, A234696, A141523, A235862, A214825, A235873, A001630, A241660, A247027, A000288, A247561, A000322, A248920, A000383, A247192, A060455, A253318, A079262, A253705.

Sequence in context: A178468 A024032 A172232 * A109032 A362539 A109111

Adjacent sequences: A253703 A253704 A253705 * A253707 A253708 A253709

Keyword

nonn

Author

Robert Price, Jan 09 2015

Status

approved