1,2

a(4) = 16 = sums of 4-th row terms of A126277: (1 + 4 + 7 + 4).

a(4) = 16 = 1*1 + 3*2 + 3*2 + 1*3.

Cf. A126277.

Adjacent sequences: A124668 A124669 A124670 this_sequence A124672 A124673 A124674

Sequence in context: A020746 A033303 A078056 this_sequence A123392 A130691 A095263

nonn

Gary W. Adamson (qntmpkt(AT)yahoo.com), Dec 23 2006