A117168 Column 3 of triangle A117165 of Shift-Moebius coefficients and so equals the Shift-Moebius transform of [0,0,1,0,...].

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

Offset: 1

Author

Wouter Meeussen and Paul D. Hanna, Mar 05 2006

Keywords

• sign

Crossrefs

Cf. A117165 (triangle), A117166 (column 1), A117167 (column 2), A117169 (row sums).

Programs

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]}