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Search: id:A084782
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| A084782 |
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G.f.: A(x) = 1 + x*A(x)^2/(1-x-x^2). |
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+0
1
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| 1, 1, 3, 11, 42, 168, 696, 2965, 12915, 57276, 257787, 1174597, 5407854, 25119663, 117579351, 554053049, 2626184688, 12513029640, 59898952650, 287931365692, 1389297316104, 6726449251539, 32668497856323, 159114598216251
(list; graph; listen)
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OFFSET
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0,3
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FORMULA
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a(0)=a(1)=1, for n>1: a(n)=sum (sum a(i)a(j-i)), (i=0, .., j))F(n-j), (j=0, .., n), where F(n) are the Fibonacci numbers A000045 - Mario Catalani (mario.catalani(AT)unito.it), Jun 18 2003
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CROSSREFS
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Sequence in context: A122368 A032443 A117641 this_sequence A066655 A118166 A106876
Adjacent sequences: A084779 A084780 A084781 this_sequence A084783 A084784 A084785
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KEYWORD
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nonn
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AUTHOR
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Paul D. Hanna (pauldhanna(AT)juno.com), Jun 14 2003
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