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Search: id:A003994
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| A003994 |
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Sequence b_4 (n) arising from homology of partitions with even number of blocks. |
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+0
2
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| 6, 138, 1452, 11444, 78642, 502846, 3089624, 18559208, 110049502, 647720562, 3796113284, 22194147996, 129581349642
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OFFSET
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3,1
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REFERENCES
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S. Sundaram, The homology of partitions with an even number of blocks, J. Alg. Comb., 4 (1995), 69-92.
S. Sundaram, Plethysm, partitions with an even number of blocks and Euler numbers, DIMACS Series, Vol. 24 (1996), 171-198, Amer. Math. Soc.
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MAPLE
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f := proc(n) option remember; if n = 1 then 2 else 3*f(n-1)+4*n-2; fi; end;
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CROSSREFS
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Cf. A003993.
Sequence in context: A013295 A090407 A075185 this_sequence A155558 A053467 A090944
Adjacent sequences: A003991 A003992 A003993 this_sequence A003995 A003996 A003997
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KEYWORD
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nonn
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AUTHOR
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Sheila Sundaram (sheila(AT)paris-gw.cs.miami.edu)
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