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Search: id:A107947
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| 1, 2, 3, 5, 6, 8, 11, 16, 17, 19, 22, 27, 33, 41, 52, 68, 69, 71, 74, 79, 85, 93, 104, 120, 137, 156, 178, 205, 238, 279, 331, 399, 400, 402, 405, 410, 416, 424, 435, 451, 468, 487, 509, 536, 569, 610, 662, 730, 799, 870, 944, 1023, 1108, 1201, 1305, 1425, 1562
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Terms at positions 2^k is found in A107948.
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PROGRAM
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(PARI) {a(n)=local(A=[1, 1], B=[1]); for(i=1, #binary(n), B=concat(B, vector(#B, k, polcoeff(Ser(A)/(1-x), #B+k-1))); A=concat(A, B); ); B[n]}
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CROSSREFS
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Cf. A107946, A107948.
Sequence in context: A081830 A117517 A098491 this_sequence A120768 A002384 A096176
Adjacent sequences: A107944 A107945 A107946 this_sequence A107948 A107949 A107950
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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), May 28 2005
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