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Search: id:A077070
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| A077070 |
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Triangle T(n,k) of power of 2 in denominator of coefficients of Legendre polynomials. |
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+0
2
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| 0, 1, 1, 3, 2, 3, 4, 4, 4, 4, 7, 5, 6, 5, 7, 8, 8, 7, 7, 8, 8, 10, 9, 10, 8, 10, 9, 10, 11, 11, 11, 11, 11, 11, 11, 11, 15, 12, 13, 12, 14, 12, 13, 12, 15, 16, 16, 14, 14, 15, 15, 14, 14, 16, 16, 18, 17, 18, 15, 17, 16, 17, 15, 18, 17, 18, 19, 19, 19, 19, 18, 18, 18, 18, 19, 19, 19
(list; table; graph; listen)
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OFFSET
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0,4
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EXAMPLE
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0; 1,1; 3,2,3; 4,4,4,4; 7,5,6,5,7; 8,8,7,7,8,8; ...
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PROGRAM
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(PARI) T(n, k)=if(k<0|k>n, 0, -valuation(polcoeff(pollegendre(2*n), 2*k), 2))
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CROSSREFS
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Cf. A005187. A005187(n)=T(n, 0).
Sequence in context: A094365 A098822 A131597 this_sequence A075988 A029150 A055923
Adjacent sequences: A077067 A077068 A077069 this_sequence A077071 A077072 A077073
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KEYWORD
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nonn,tabl
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AUTHOR
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Michael Somos Oct 25, 2002
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