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Search: id:A120902
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A120902 Row sums of triangle A120898 (cascadence of 1+2x+x^2). +0
5
1, 5, 23, 103, 450, 1932, 8196, 34468, 143997, 598463, 2476936, 10216818, 42023225, 172436363, 706132290, 2886574198, 11781962631, 48025519977, 195530083266, 795241236228, 3231290822280, 13118557603984, 53218706064038 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Cf. A120898, A120899, A120900, A120901.

Sequence in context: A085350 A113443 A124999 this_sequence A054441 A102285 A129162

Adjacent sequences: A120899 A120900 A120901 this_sequence A120903 A120904 A120905

KEYWORD

nonn

AUTHOR

Paul D. Hanna (pauldhanna(AT)juno.com), Jul 14 2006

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.


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