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Search: id:A104314
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| A104314 |
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Prime coefficient of x^(2n) in (x^4+x^3+x^2+x+1)^n for n in A104313. |
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+0
3
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| 5, 19, 1974442362935339179, 47705925773278538281, 234692178470218983001
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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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}]
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CROSSREFS
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Cf. A005191 (pentanomial coefficients), A104312 (nontrivial prime quadrinomial coefficients).
Sequence in context: A095218 A119964 A122152 this_sequence A093482 A030696 A098047
Adjacent sequences: A104311 A104312 A104313 this_sequence A104315 A104316 A104317
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KEYWORD
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more,nonn
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AUTHOR
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T. D. Noe (noe(AT)sspectra.com), Mar 01 2005
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