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A027591
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Sequence satisfies T^2(a)=a, where T is defined below.
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1
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1, 2, 2, 4, 4, 7, 8, 12, 13, 18, 21, 28, 32, 41, 47, 59, 67, 84, 95, 116, 130, 158, 177, 211, 237, 279, 312, 364, 408, 471, 525, 603, 671, 766, 849, 966, 1067, 1206, 1330, 1498, 1649, 1846, 2030, 2264, 2484, 2759, 3024, 3348, 3659, 4041, 4409, 4855, 5287, 5809
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| T(a) is given by A027590. [From Max Alekseyev (maxale(AT)gmail.com), Feb 20 2010]
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REFERENCES
| S. Viswanath (student, Dept. Math, Indian Inst. Technology, Kanpur) A Note on Partition Eigensequences, preprint, Nov 15 1996.
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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.
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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 parts = 0 mod 3 do not occur more than once.
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CROSSREFS
| Sequence in context: A095700 A035944 A050366 * A027596 A007213 A097851
Adjacent sequences: A027588 A027589 A027590 * A027592 A027593 A027594
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KEYWORD
| nonn,eigen
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| More terms from Max Alekseyev (maxale(AT)gmail.com), Feb 20 2010
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