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Search: id:A002756
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| A002756 |
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Number of bipartite partitions of n white objects and 7 black ones.
(Formerly M4964 N2129)
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+0
1
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| 15, 45, 118, 257, 522, 975, 1752, 2998, 4987, 8043, 12693, 19584, 29719, 44324, 65210, 94642, 135805, 192699, 270822, 377048, 520624, 713123, 969784, 1309646, 1757447, 2343931, 3108553, 4100220, 5380964, 7027376, 9135769, 11824507
(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^7 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 7 of A060243. Cf. A005380.
Sequence in context: A014634 A126228 A072251 this_sequence A039450 A127069 A095129
Adjacent sequences: A002753 A002754 A002755 this_sequence A002757 A002758 A002759
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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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