A104314 - OEIS

A104314

Prime coefficient of x^(2*k) in (x^4 + x^3 + x^2 + x + 1)^k for k in A104313.

5, 19, 1974442362935339179, 47705925773278538281, 234692178470218983001

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OFFSET

1,1

COMMENTS

a(6) > A005191(195315), if it exists. See A104313 for more information. - Jinyuan Wang, Jul 26 2021

LINKS

MATHEMATICA

f=1; Do[f=Expand[f*(x^4+x^3+x^2+x+1)]; s=Coefficient[f, x, 2n]; If[PrimeQ[s], Print[{n, s}]], {n, 100}]

CROSSREFS

Cf. A005191 (pentanomial coefficients), A104312 (nontrivial prime quadrinomial coefficients), A104313.

KEYWORD

nonn

AUTHOR

T. D. Noe, Mar 01 2005

STATUS

approved