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A027585 Sequence satisfies T^2(a)=a, where T is defined below. +0
1
1, 2, 3, 4, 6, 8, 10, 13, 17, 21, 26, 33, 39, 48, 59 (list; graph; listen)
OFFSET

0,2

REFERENCES

S. Viswanath (student, Dept. Math, Indian Inst. Technology, Kanpur) A Note on Partition Eigensequences, preprint, Nov 15 1996.

LINKS

M. Bernstein and N. J. A. Sloane, Some canonical sequences of integers, Linear Alg. Applications, 226-228 (1995), 57-72; erratum 320 (2000), 210.

FORMULA

Define T:a->b by: given a1<=a2<=..., let b(n) = number of ways of partitioning n into parts from a1, a2, ... such that even parts do not occur more than once.

CROSSREFS

Sequence in context: A062435 A020702 A067996 this_sequence A123015 A005434 A027589

Adjacent sequences: A027582 A027583 A027584 this_sequence A027586 A027587 A027588

KEYWORD

nonn,more,eigen

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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