A115128 Row sums of triangle A115127.

3, 13, 45, 148, 486, 1618, 5478, 18841, 65692, 231713, 825386, 2964937, 10728241, 39065505, 143047469, 526399048, 1945668327, 7220164256, 26889574045, 100469991084, 376513308113, 1414840405426, 5329942273203, 20125253091226

Offset

2,1

Links

Table of n, a(n) for n=2..25.

Formula

a(n)=sum(A115127(n, m), m=1..), n>=1.

Crossrefs

Sequence in context: A058934 A141088 A187915 * A140420 A308087 A232231

Adjacent sequences: A115125 A115126 A115127 * A115129 A115130 A115131

Keyword

nonn,easy

Author

Wolfdieter Lang, Jan 13 2006

Status

approved