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Search: id:A132738
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| 1, 2, 7, 16, 33, 66, 131, 260, 517, 1030, 2055, 4104, 8201, 16394, 32779, 65548, 131085, 262158, 524303, 1048592, 2097169, 4194322, 8388627, 16777236, 33554453, 67108886, 134217751, 268435480, 536870937, 1073741850, 2147483675
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OFFSET
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0,2
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FORMULA
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Binomial transform of [1, 1, 4, 0, 4, 0, 4,...].
a(n) = 2^(n+1)+n-3 for n > 0. [From Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Jul 06 2009]
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EXAMPLE
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a(3) = 16 = sum of row 3 terms of triangle A132737: (1 + 7 + 7 + 1).
a(3) = 16 = (1, 3, 3, 1) dot (1, 1, 4, 0) = (1 + 3 + 12 + 0).
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CROSSREFS
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Cf. A132737.
Sequence in context: A023550 A130869 A023612 this_sequence A097442 A131405 A042243
Adjacent sequences: A132735 A132736 A132737 this_sequence A132739 A132740 A132741
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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), Aug 26 2007
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EXTENSIONS
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Extended by Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Jul 06 2009
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