A115955 Product of A115952 and summing matrix (1/(1-x),x).

1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1

Offset

0,1

Comments

Row sums are A057979(n+3).

Links

Table of n, a(n) for n=0..90.

Example

Triangle begins
1,
0, 1,
0, 1, 1,
0, 0, 0, 1,
0, 0, 1, 1, 1,
0, 0, 0, 0, 0, 1,
0, 0, 0, 1, 1, 1, 1,
0, 0, 0, 0, 0, 0, 0, 1,
0, 0, 0, 0, 1, 1, 1, 1, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1

Crossrefs

Sequence in context: A185907 A321016 A077051 * A106344 A106346 A296212

Adjacent sequences: A115952 A115953 A115954 * A115956 A115957 A115958

Keyword

nonn,tabl

Author

Paul Barry, Feb 02 2006

Status

approved