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A117167
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Column 2 of triangle A117165 of Shift-Moebius coefficients and so equals the Shift-Moebius transform of [0,1,0,0,...].
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4
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0, 1, 0, -1, -1, -2, -1, -2, 0, -2, 0, 1, 2, 0, 3, 3, 4, 4, 6, 5, 7, 6, 7, 10, 7, 4, 7, 10, 7, 8, 5, 7, 6, 6, 1, 5, 0, -1, -2, -1, -8, -6, -11, -7, -15, -12, -20, -15, -24, -27, -33, -25, -36, -28, -41, -39, -48, -42, -51, -46, -61, -61, -69, -58, -72, -64, -77, -70, -85, -76, -90, -85, -94, -86, -99, -84, -100
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,6
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PROG
| (PARI) {a(n)=prod(i=0, n, matrix(n+1, n+1, r, c, if(r>=c, if((r+n+1-i)%(c+n+1-i)==0, moebius((r+n+1-i)/(c+n+1-i)), 0))))[n, 2]}
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CROSSREFS
| Cf. A117165 (triangle), A117166 (column 1), A117168 (column 3), A117169 (row sums).
Sequence in context: A159955 A053838 * A117169 A046920 A107599 A156836
Adjacent sequences: A117164 A117165 A117166 * A117168 A117169 A117170
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KEYWORD
| sign
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AUTHOR
| Wouter Meeussen (wouter.meeussen(AT)pandora.be) and Paul D. Hanna (pauldhanna(AT)juno.com), Mar 05 2006
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