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 A131912 Row sums of triangle A131911. 1

%I

%S 1,7,12,18,23,29,34,40,45,51,56,62,67,73,78,84,89,95,100,106,111,117,

%T 122,128,133,139,144,150,155,161,166,172,177,183,188,194,199,205,210,

%U 216,221,227,232,238,243,249,254,260,265,271,276,282,287,293,298

%N Row sums of triangle A131911.

%F Binomial transform of (1, 6, -1, 2, -4, 8, -16, ...).

%F a(n) = 11*n - a(n-1) - 14 (with a(1)=1). - _Vincenzo Librandi_, Nov 23 2010

%e a(4) = 18 = sum of row 4 terms, triangle A131911: (8 + 1 + 2 + 7).

%e a(4) = 18 = (1, 3, 3, 1) dot (1, 6, -1, 2) = (1 + 18 -3, 2).

%Y Cf. A131911.

%K nonn

%O 1,2

%A _Gary W. Adamson_, Jul 27 2007

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Last modified May 16 21:29 EDT 2022. Contains 353720 sequences. (Running on oeis4.)