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A001994
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Expansion of a generating function.
(Formerly M2348 N0927)
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0
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1, 1, 3, 4, 8, 11, 18, 24, 36, 47, 66, 84, 113, 141, 183, 225, 284, 344, 425, 508, 617, 729, 872, 1020, 1205, 1397, 1632, 1877, 2172, 2480, 2846, 3228, 3677, 4146, 4691, 5261, 5917, 6603, 7386, 8205, 9133, 10103, 11195, 12336, 13613, 14947, 16431
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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REFERENCES
| A. Cayley, Calculation of the minimum N.G.F. of the binary seventhic, Collected Mathematical Papers. Vols. 1-13, Cambridge Univ. Press, London, 1889-1897, Vol. 10, p. 408-419.
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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FORMULA
| G.f.: 1/((1-x^2)*(1-x^4)^2*(1-x^6)*(1-x^8)*(1-x^10))
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CROSSREFS
| Cf. A001996.
Sequence in context: A186423 A156056 A099108 * A183151 A084421 A024786
Adjacent sequences: A001991 A001992 A001993 * A001995 A001996 A001997
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| More terms from James A. Sellers (sellersj(AT)math.psu.edu), Feb 09 2000
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