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Search: id:A039961
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| A039961 |
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Triangle of coefficients in a Fibonacci-like sequence of polynomials. |
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+0
2
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| 1, 1, 1, -1, 1, -1, -1, 1, -1, -2, 1, 1, -1, -3, 2, 1, 1, -1, -4, 3, 3, -1
(list; graph; listen)
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OFFSET
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1,10
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REFERENCES
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A. F. Horadam, R. P. Loh and A. G. Shannon, Divisibility properties of some Fibonacci-type sequences, pp. 55-64 of Combinatorial Mathematics VI (Armidale 1978), Lect. Notes Math. 748, 1979.
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FORMULA
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q_{n+2}(x)=x*q_{n+1)(x)-q_n(x), q_1(x)=q_2(x)=1.
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EXAMPLE
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1; 1; 1 -1; 1 -1 -1; 1 -1 -2 1; 1 -1 -3 2 1; ...
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CROSSREFS
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Sequence in context: A086290 A136568 A152157 this_sequence A108299 A065941 A123320
Adjacent sequences: A039958 A039959 A039960 this_sequence A039962 A039963 A039964
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KEYWORD
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sign
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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