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A164925 Array binomial(j-i,j) read by rising antidiagonals. 2
1, 1, 1, 1, 0, 1, 1, -1, 0, 1, 1, -2, 0, 0, 1, 1, -3, 1, 0, 0, 1, 1, -4, 3, 0, 0, 0, 1, 1, -5, 6, -1, 0, 0, 0, 1, 1, -6, 10, -4, 0, 0, 0, 0, 1, 1, -7, 15, -10, 1, 0, 0, 0, 0, 1, 1, -8, 21, -20, 5, 0, 0, 0, 0, 0, 1, 1, -9, 28, -35, 15, -1, 0, 0, 0, 0, 0, 1, 1, -10, 36, -56, 35, -6, 0, 0, 0, 0, 0, 0, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,12

COMMENTS

Inverse of A052509, or A004070 ???

Diagonals sum up to A164965. - Mark Dols, Sep 02 2009]

LINKS

Table of n, a(n) for n=1..91.

EXAMPLE

Begins:

1, 1, 1, 1,..

1, 0, 0, 0,..

1,-1, 0, 0,..

1,-2, 1, 0,..

1,-3, 3,-1,..

.,..,..,..,..

PROG

(PARI) {A(i, j) = if( i<0, 0, binomial(j-i, j))} /* Michael Somos, Jan 25 2012 */

CROSSREFS

Cf. A052509, A004070, A130595, A109466, A164899, A164915, A010892, A164965.

Sequence in context: A277537 A323179 A320508 * A334546 A035671 A190164

Adjacent sequences:  A164922 A164923 A164924 * A164926 A164927 A164928

KEYWORD

sign

AUTHOR

Mark Dols, Aug 31 2009

EXTENSIONS

Edited by Michael Somos, Jan 26 2012

STATUS

approved

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Last modified December 3 04:22 EST 2021. Contains 349445 sequences. (Running on oeis4.)