0,3

Row sums are A127806.

Triangle begins

1,

0, 11,

0, -11, 111,

0, 11, -111, 1111,

0, 0, 0, -1111, 11111,

0, -11, 111, 0, -11111, 111111,

0, 0, 0, 0, 0, -111111, 1111111,

0, 11, -111, 1111, 0, 0, -1111111, 11111111,

0, 0, 0, 0, 0, 0, 0, -11111111, 111111111,

0, 0, 0, -1111, 11111, 0, 0, 0, -111111111, 1111111111,

0, 0, 0, 0, 0, 0, 0, 0, 0, -1111111111, 11111111111

Triangle is inverse of

1,

0, 1/11,

0, 1/111, 1/111,

0, 0, 1/1111, 1/1111,

0, 0, 1/11111, 1/11111, 1/11111,

0, 0, 0, 1/111111, 1/111111, 1/111111,

0, 0, 0, 1/1111111, 1/1111111, 1/1111111, 1/1111111,

0, 0, 0, 0, 1/11111111, 1/11111111, 1/11111111, 1/11111111,

0, 0, 0, 0, 1/111111111, 1/111111111, 1/111111111, 1/111111111, 1/111111111

Adjacent sequences: A127802 A127803 A127804 this_sequence A127806 A127807 A127808

Sequence in context: A115595 A003621 A055963 this_sequence A088621 A088623 A087556

sign,tabl

Paul Barry (pbarry(AT)wit.ie), Jan 29 2007