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Search: id:A002757
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| A002757 |
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Number of bipartite partitions of n white objects and 8 black ones.
(Formerly M5123 N2219)
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+0
1
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| 22, 67, 181, 401, 831, 1576, 2876, 4987, 8406, 13715, 21893, 34134, 52327, 78785, 116982, 171259, 247826, 354482, 502090, 704265, 979528, 1351109, 1849932, 2514723, 3396262, 4557867, 6081466, 8068930, 10650479, 13987419, 18283999
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Number of ways to factor p^n*q^8 where p and q are distinct primes.
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
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. 1.
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CROSSREFS
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Column 8 of A060243. Cf. A005380.
Sequence in context: A164136 A041946 A041948 this_sequence A041950 A114636 A044160
Adjacent sequences: A002754 A002755 A002756 this_sequence A002758 A002759 A002760
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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Edited by Christian G. Bower (bowerc(AT)usa.net), Jan 08 2004
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