0,3

Row sums A127752 mod 2 are conjectured to be first Feigenbaum symbolic sequence A035263.

Triangle begins

1,

0, 4,

0, -4, 7,

0, 4, -7, 10,

0, 0, 0, -10, 13,

0, -4, 7, 0, -13, 16,

0, 0, 0, 0, 0, -16, 19,

0, 4, -7, 10, 0, 0, -19, 22,

0, 0, 0, 0, 0, 0, 0, -22, 25,

0, 0, 0, -10, 13, 0, 0, 0, -25, 28,

0, 0, 0, 0, 0, 0, 0, 0, 0, -28, 31,

0, -4, 7, 0, -13, 16, 0, 0, 0, 0, -31, 34,

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -34, 37

Inverse of

1,

0, 1/4,

0, 1/7, 1/7,

0, 0, 1/10, 1/10,

0, 0, 1/13, 1/13, 1/13,

0, 0, 0, 1/16, 1/16, 1/16,

0, 0, 0, 1/19, 1/19, 1/19, 1/19,

0, 0, 0, 0, 1/22, 1/22, 1/22, 1/22,

0, 0, 0, 0, 1/25, 1/25, 1/25, 1/25, 1/25,

0, 0, 0, 0, 0, 1/28, 1/28, 1/28, 1/28, 1/28,

0, 0, 0, 0, 0, 1/31, 1/31, 1/31, 1/31, 1/31, 1/31

Sequence in context: A134944 A088375 A135011 this_sequence A028602 A111767 A111511

Adjacent sequences: A127748 A127749 A127750 this_sequence A127752 A127753 A127754

sign,tabl

Paul Barry (pbarry(AT)wit.ie), Jan 28 2007