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Search: id:A117168
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| A117168 |
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Column 3 of triangle A117165 of Shift-Moebius coefficients and so equals the Shift-Moebius transform of [0,0,1,0,...]. |
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+0
5
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| 0, 0, 1, 0, 0, -1, -1, -1, -2, -1, -2, -1, -1, 0, -2, 1, 0, 2, 1, 4, 1, 5, 3, 6, 6, 7, 4, 8, 8, 10, 8, 10, 8, 12, 9, 10, 10, 10, 8, 10, 8, 9, 6, 7, 7, 5, 5, 3, 4, 1, -4, -5, -4, -7, -6, -13, -12, -17, -15, -20, -18, -28, -29, -37, -31, -40, -37, -47, -42, -55, -51, -62, -59, -69, -65, -78, -69, -84, -75, -93
(list; graph; listen)
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OFFSET
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1,9
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PROGRAM
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(PARI) {a(n)=prod(i=0, n+2, matrix(n+2, n+2, r, c, if(r>=c, if((r+n+2-i)%(c+n+2-i)==0, moebius((r+n+2-i)/(c+n+2-i)), 0))))[n, 3]}
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CROSSREFS
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Cf. A117165 (triangle), A117166 (column 1), A117167 (column 2), A117169 (row sums).
Sequence in context: A063995 A020951 A117118 this_sequence A029443 A078508 A029416
Adjacent sequences: A117165 A117166 A117167 this_sequence A117169 A117170 A117171
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KEYWORD
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sign
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AUTHOR
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Wouter Meeussen (wouter.meeussen(AT)pandora.be) and Paul D. Hanna (pauldhanna(AT)juno.com), Mar 05 2006
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