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A120902 Row sums of triangle A120898 (cascadence of 1+2x+x^2). 4

%I

%S 1,5,23,103,450,1932,8196,34468,143997,598463,2476936,10216818,

%T 42023225,172436363,706132290,2886574198,11781962631,48025519977,

%U 195530083266,795241236228,3231290822280,13118557603984,53218706064038

%N Row sums of triangle A120898 (cascadence of 1+2x+x^2).

%Y Cf. A120898, A120899, A120900, A120901.

%K nonn

%O 0,2

%A _Paul D. Hanna_, Jul 14 2006

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Last modified September 25 05:14 EDT 2021. Contains 347652 sequences. (Running on oeis4.)