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A109977 Inverse of number-theoretic triangle A109974. 1
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 (list; table; graph; refs; listen; history; text; internal format)
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: A213947 A188403 A248929 * A201199 A318459 A300823

Adjacent sequences:  A109974 A109975 A109976 * A109978 A109979 A109980

KEYWORD

sign,tabl

AUTHOR

Paul Barry, Jul 06 2005

STATUS

approved

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Last modified September 22 06:49 EDT 2019. Contains 327288 sequences. (Running on oeis4.)