A109977 Inverse of number-theoretic triangle A109974.

1, -2, 1, 4, -3, 1, -15, 11, -5, 1, 107, -76, 35, -9, 1, -1475, 1041, -476, 125, -17, 1, 40914, -28858, 13177, -3460, 479, -33, 1, -2327019, 1641270, -749336, 196731, -27260, 1901, -65, 1, 271813931, -191712888, 87527566, -22979242, 3184213, -222196, 7655, -129, 1, -64930439315, 45796039830

Offset

0,2

Links

Table of n, a(n) for n=0..46.

Example

Rows begin
1;
-2,1;
4,-3,1;
-15,11,-5,1;
107,-76,35,-9,1;
-1475,1041,-476,125,-17,1;

Crossrefs

Sequence in context: A348482 A188403 A248929 * A201199 A318459 A300823

Adjacent sequences: A109974 A109975 A109976 * A109978 A109979 A109980

Keyword

sign,tabl

Author

Paul Barry, Jul 06 2005

Status

approved