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 A182103 Integral of exp(-x)*Phi_n(x) from 0 to infinity, Phi_n the n-th cyclotomic polynomial 1
 0, 2, 4, 3, 34, 2, 874, 25, 727, 20, 4037914, 23, 522956314, 620, 35382, 40321, 22324392524314, 715, 6780385526348314, 39623, 439408062, 3301820, 1177652997443428940314, 40297, 2432903315854636921, 442386620, 6402373706090881, 475412423 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Appears to be all positive integers for n>1, suggesting the possibility of a combinatorial interpretation. LINKS Jair Taylor, Table of n, a(n) for n = 1..497 PROG (Sage) for n in range(1, 40):   print integral(e^(-x)*cyclotomic_polynomial(n), x, 0, infinity) CROSSREFS Agrees with A003422(p) for p prime. Sequence in context: A132049 A229213 A071970 * A303053 A163089 A258371 Adjacent sequences:  A182100 A182101 A182102 * A182104 A182105 A182106 KEYWORD nonn AUTHOR Jair Taylor, Apr 11 2012 STATUS approved

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Last modified August 19 18:51 EDT 2019. Contains 326133 sequences. (Running on oeis4.)