1,3

Triangle A130160 has row sums A000069.

Moebius transform of A000069

a(4) = 5 = dot product of row 4 of A054525, [0, -1, 0, 1] and [1, 2, 4, 7], where A000069 = (1, 2, 4, 7, 8, 11, 13,...).

Cf. A130160, A000069.

Sequence in context: A071581 A084393 A100005 this_sequence A127314 A092257 A104199

Adjacent sequences: A130156 A130157 A130158 this_sequence A130160 A130161 A130162

nonn

Gary W. Adamson (qntmpkt(AT)yahoo.com), May 13 2007