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Search: id:A120473
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A120473 a(n) = A000045[n]*(A004001[n + 1] - 2*A004001[n] + A004001[n - 1]). +0
1
-1, 1, -2, 3, 0, -8, 0, 21, 0, 0, -89, 144, -233, 0, 0, 987, 0, 0, 0, -6765, 10946, 0, -28657, 46368, -75025, 0, 196418, -317811, 0, 0 (list; graph; listen)
OFFSET

0,3

MATHEMATICA

Conway[0] = 0; Conway[1] = Conway[2] = 1; Conway[n_Integer?Positive] := Conway[n] = Conway[Conway[n - 1]] + Conway[n - Conway[n - 1]] a[n_] := Fibonacci[n]*(Conway[n + 1] - 2*Conway[n] + Conway[n - 1]) Table[a[n], {n, 1, 30}]

CROSSREFS

Cf. A000045, A004001, A120474, A120475.

Sequence in context: A089134 A084257 A059034 this_sequence A019911 A020823 A021437

Adjacent sequences: A120470 A120471 A120472 this_sequence A120474 A120475 A120476

KEYWORD

sign

AUTHOR

Roger Bagula (rlbagulatftn(AT)yahoo.com), Jul 06 2006

EXTENSIONS

Edited by N. J. A. Sloane (njas(AT)research.att.com), Oct 01, 2006

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Last modified November 24 19:38 EST 2009. Contains 167438 sequences.


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