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A120897 Row sums of triangle A120894 (cascadence of 1+x+x^2). 4
1, 3, 10, 33, 106, 336, 1056, 3296, 10234, 31648, 97551, 299888, 919865, 2816291, 8608712, 26278538, 80120533, 244022331, 742525242, 2257527861, 6858558246, 20822959508, 63181453350, 191601205342, 580749971840, 1759465640586 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..25.

CROSSREFS

Cf. A120894, A120895, A120896.

Sequence in context: A061566 A082398 A053156 * A077825 A049219 A126184

Adjacent sequences:  A120894 A120895 A120896 * A120898 A120899 A120900

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Jul 14 2006

STATUS

approved

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Last modified November 19 20:42 EST 2019. Contains 329323 sequences. (Running on oeis4.)