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A104975 Inverse of a Fredholm-Rueppel triangle. 3
1, 0, 1, -1, 0, 1, 0, -1, 0, 1, 1, 0, -1, 0, 1, 0, 1, 0, -1, 0, 1, -2, 0, 1, 0, -1, 0, 1, 0, -2, 0, 1, 0, -1, 0, 1, 3, 0, -2, 0, 1, 0, -1, 0, 1, 0, 3, 0, -2, 0, 1, 0, -1, 0, 1, -4, 0, 3, 0, -2, 0, 1, 0, -1, 0, 1, 0, -4, 0, 3, 0, -2, 0, 1, 0, -1, 0, 1, 6, 0, -4, 0, 3, 0, -2, 0, 1, 0, -1, 0, 1, 0, 6, 0, -4, 0, 3, 0, -2, 0, 1, 0, -1, 0, 1, -10, 0, 6, 0, -4, 0, 3, 0, -2 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,22

COMMENTS

Sequence array for A104977. Inverse of A104974. Row sums are A104976.

LINKS

Table of n, a(n) for n=0..113.

FORMULA

Riordan array (x^2/(sum{k>=0, x^(2^k)}-x), x).

EXAMPLE

Rows start {1},{0,1},{-1,0,1},{0,-1,0,1},{1,0,-1,0,1},{0,1,0,-1,0,1},...

CROSSREFS

Sequence in context: A152140 A292252 A244415 * A191254 A106404 A292242

Adjacent sequences:  A104972 A104973 A104974 * A104976 A104977 A104978

KEYWORD

easy,sign,tabl

AUTHOR

Paul Barry, Mar 30 2005

STATUS

approved

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Last modified October 16 11:51 EDT 2019. Contains 328056 sequences. (Running on oeis4.)