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Search: id:A147524
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| A147524 |
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As a vector, shifts to the left when multiplied by A054521 |
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+0
1
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| 1, 1, 1, 2, 2, 5, 3, 12, 7, 21, 12, 85, 18, 152
(list; graph; listen)
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OFFSET
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1,4
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COMMENT
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Eigensequence of triangle A054521.
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FORMULA
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Given triangle A054521 modified with right border = (1, 0, 0, 0,...): (1, 1,0; 1,1,0; 1,0,1,0; 1,1,1,1,0;...). Begin with (1, 1, 1,...) then the next term = dot product of current series and rows of A054521 modified.
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EXAMPLE
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a(5) = 2 = (1, 1, 1, 2) dot (1, 0, 1, 0) = (1 + 0 + 1 + 0).
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CROSSREFS
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Cf. A054521
Sequence in context: A133440 A160793 A006800 this_sequence A113177 A135281 A068465
Adjacent sequences: A147521 A147522 A147523 this_sequence A147525 A147526 A147527
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KEYWORD
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nonn
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Apr 24 2009
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