A153198 Triangle read by rows, T(n,k) = A006789(k) if (n=k) otherwise zero. = (A006789 * 0^(n-k))

1, 0, 1, 0, 0, 2, 0, 0, 0, 5, 0, 0, 0, 0, 14, 0, 0, 0, 0, 0, 43, 0, 0, 0, 0, 0, 0, 143, 0, 0, 0, 0, 0, 0, 0, 509, 0, 0, 0, 0, 0, 0, 0, 0, 1922

Offset

0,6

Comments

Binomial transform of A153198 = triangle A153199 with row sums = A153197: (1, 2, 5, 15, 51, 189, 748,...).

Links

Table of n, a(n) for n=0..44.

Formula

Triangle read by rows, T(n,k) = (A006789 * 0^(n-k)). Infinite lower triangular matrix with A006789: (1, 1, 2, 5, 14, 43, 143,...) as the main diagonal and the rest zeros.

Example

First few rows of the triangle =
1;
0, 1;
0, 0, 2;
0, 0, 0, 5;
0, 0, 0, 0, 14;
0, 0, 0, 0, 0, 43;
0, 0, 0, 0, 0, 0, 143;
0, 0, 0, 0, 0, 0, 0, 509;
...

Crossrefs

Cf. A006789, A153197, A153198

Sequence in context: A259863 A283666 A131427 * A182492 A222898 A113044

Adjacent sequences: A153195 A153196 A153197 * A153199 A153200 A153201

Keyword

nonn,tabl

Author

Gary W. Adamson, Dec 20 2008

Status

approved