The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A153345 Triangle read by rows, A000012 * A055830 2

%I

%S 1,2,0,4,1,0,7,4,1,0,12,11,5,1,0,20,26,17,6,1,33,56,48,24,7,1,0,54,

%T 114,121,78,32,8,1,0,88,223,283,223,117,41,9,1,0,143,424,627,584,372,

%U 166,51,10,1,0,232,789,1334,1434,1073,579,226,61,11,1,0

%N Triangle read by rows, A000012 * A055830

%C Row sums = Pell numbers, A000129: (1, 2, 5, 12, 29,...).

%C Left border = A000071.

%F Triangle read by rows, A000012 * triangle A055830 = partial sums of A055830 columns.

%e First few rows of the triangle =

%e 1;

%e 2, 0;

%e 4, 1, 0;

%e 7, 4, 1, 0;

%e 12, 11, 5, 1, 0;

%e 20, 26, 17, 6, 1, 0;

%e 33, 56, 48, 24, 7, 1, 0;

%e 54, 114, 121, 78, 32, 8, 1, 0;

%e 88, 223, 283, 223, 117, 41, 9, 1, 0;

%e 143, 424, 627, 584, 372, 166, 51, 10, 1, 0;

%e 232, 789, 1334, 1434, 1073, 579, 226, 62, 11, 1, 0;

%e ...

%Y Cf. A055830, A000129

%K nonn,tabl

%O 1,2

%A _Gary W. Adamson_, Dec 24 2008

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified April 8 05:55 EDT 2020. Contains 333312 sequences. (Running on oeis4.)