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A006195
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Reversion of Jacobi theta_3.
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3
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1, -2, 8, -40, 222, -1316, 8160, -52272, 343220, -2297682, 15623760, -107611608, 749209832, -5264005060, 37277153920, -265788870480, 1906489923022, -13747860118724, 99606357848920, -724732875917064, 5293303253527704, -38795196044205056
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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LINKS
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Table of n, a(n) for n=0..21.
J.-G. Penaud, Arbres et Animaux, Ph.D. Dissertation, Université Bordeaux I, 1990, cover page and p. 76. (Annotated scanned copy)
Index entries for reversions of series
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FORMULA
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REVERT(A000122).
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PROG
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(PARI) N=66; x='x+O('x^N); /* that many terms */
Vec(serreverse(x*sum(n=-N, N, x^(n^2)))) /* show terms */ /* Joerg Arndt, May 25 2011 */
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CROSSREFS
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Sequence in context: A234938 A143388 A027282 * A214763 A219587 A092807
Adjacent sequences: A006192 A006193 A006194 * A006196 A006197 A006198
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KEYWORD
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sign
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AUTHOR
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N. J. A. Sloane
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EXTENSIONS
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Signs corrected by N. J. A. Sloane, Dec 24 2001
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STATUS
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approved
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