The On-Line Encyclopedia of Integer Sequences (OEIS)

A292143 revision #11

A292143

Triangle read by rows: T(n,k) = (-4)^(1 - k mod 2) * T(n-k,k-1) + T(n-k,k) with T(0,0) = 1 for 0 <= k <= A003056(n).

1, 0, 1, 0, 1, 0, 1, -4, 0, 1, -4, 0, 1, -8, 0, 1, -8, -4, 0, 1, -12, -4, 0, 1, -12, -8, 0, 1, -16, -12, 0, 1, -16, -16, 16, 0, 1, -20, -20, 16, 0, 1, -20, -28, 32, 0, 1, -24, -32, 48, 0, 1, -24, -40, 80, 0, 1, -28, -48, 96, 16, 0, 1, -28, -56, 144, 16, 0, 1, -32

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,8

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..9981

EXAMPLE

First few rows are:

0, 1;

0, 1, -4;

0, 1, -8;

0, 1, -8, -4;

0, 1, -12, -4;