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A343473 G.f.: 1 + (1*x)/(1 + (2*x)^2/(1 + (3*x)^3/(1 + (4*x)^4/(1 + (5*x)^5/(1 + ...))))). 2
1, 1, 0, -4, 0, 16, 108, -64, -864, -2660, -22464, 33968, 272268, 1217152, 4629312, 68208188, -98077824, -1089798320, -5246016084, -32436365248, -180561473568, -3404617719332, 5203858765248, 55902314446832, 354805454664396, 2229923884913920 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,4
LINKS
PROG
(PARI) a(n) = my(A=1+O(x)); for(i=1, n, A=1+((n-i+1)*x)^(n-i+1)/A); polcoef(A, n);
CROSSREFS
Sequence in context: A247120 A002979 A137279 * A233807 A302771 A167350
KEYWORD
sign
AUTHOR
Seiichi Manyama, Apr 16 2021
STATUS
approved

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Last modified June 13 22:21 EDT 2024. Contains 373391 sequences. (Running on oeis4.)