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A002763
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Number of bipartite partitions.
(Formerly M3414 N1380)
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2
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4, 11, 26, 52, 98, 171, 289, 467, 737, 1131, 1704, 2515, 3661, 5246, 7430, 10396, 14405, 19760, 26884, 36269, 48583, 64614, 85399, 112170, 146526, 190362
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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REFERENCES
| M. S. Cheema and H. Gupta, Tables of Partitions of Gaussian Integers. National Institute of Sciences of India, Mathematical Tables, Vol. 1, New Delhi, 1956, p. 11.
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
| a(n) = a(n-1) + A000041(n) + A000070(n) + A000291(n), for n>0 - Alford Arnold (Alford1940(AT)aol.com), Dec 10 2007
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CROSSREFS
| Cf. A082775 A129306.
Sequence in context: A140897 A008263 A159944 * A077270 A076048 A109414
Adjacent sequences: A002760 A002761 A002762 * A002764 A002765 A002766
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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