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Search: id:A136396
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| 1, 3, 8, 19, 41, 81, 148, 253, 409, 631, 936, 1343, 1873, 2549
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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Binomial transform of [1, 2, 3, 3, 2, 0, 0, 0,...] Narayana transform (A001263) * [1, 2, 1, 0, 0, 0,...].
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EXAMPLE
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a(3) = 19 = (1, 3, 3, 1) dot (1, 2, 3, 3) = (1 + 6 + 9 + 3).
a(3) = 19 = (1, 6, 6, 1) dot (1, 2, 1, 0) = (1 + 12 + 6 + 0), where (1, 6, 6, 1) = row 4 of the Narayana triangle.
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CROSSREFS
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Cf. A001263.
Adjacent sequences: A136393 A136394 A136395 this_sequence A136397 A136398 A136399
Sequence in context: A007326 A067332 A082535 this_sequence A006380 A095846 A089924
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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), Dec 29 2007
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