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Search: id:A102429
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| 1, 2, 6, 11, 23, 44, 85, 163, 311, 594, 1132, 2158, 4112, 7835, 14928, 28441, 54186, 103234, 196679, 374707, 713880, 1360061, 2591143, 4936559, 9404966, 17918024, 34136814, 65036304, 123904967, 236059552, 449732673, 856815474, 1632375854
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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G.f.: (1+x^2-x^3)/((1-x)*(1-x-2*x^2+x^4)). - Vladeta Jovovic (vladeta(AT)Eunet.yu), Apr 05 2005
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EXAMPLE
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1=1, 1+1=2, 1+3+2=6; 1+5+4+1=11
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CROSSREFS
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Cf. A011973, A102426, A102427, A102428.
Sequence in context: A073939 A085264 A005999 this_sequence A080012 A103143 A005673
Adjacent sequences: A102426 A102427 A102428 this_sequence A102430 A102431 A102432
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KEYWORD
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easy,nonn
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AUTHOR
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Russell Walsmith (russw(AT)lycos.com), Jan 11 2005
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EXTENSIONS
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More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Apr 05 2005
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