A098172 - OEIS

The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.

The OEIS is supported by the many generous donors to the OEIS Foundation.

A098172 as a triangular array

1

0 1

0 0 1

0 0 1 1

0 0 0 4 1

0 0 0 0 10 1

0 0 0 0 1 20 1

0 0 0 0 0 7 35 1

0 0 0 0 0 0 28 56 1

0 0 0 0 0 0 1 84 84 1

0 0 0 0 0 0 0 10 210 120 1

0 0 0 0 0 0 0 0 55 462 165 1

0 0 0 0 0 0 0 0 1 220 924 220 1

A098172 as a square array

1 0 0 0 0 0 0 0 0 0 0 0 0

1 0 0 0 0 0 0 0 0 0 0 0

1 1 0 0 0 0 0 0 0 0 0

1 4 0 0 0 0 0 0 0 0

1 10 1 0 0 0 0 0 0

1 20 7 0 0 0 0 0

1 35 28 1 0 0 0

1 56 84 10 0 0

1 84 210 55 1

1 120 462 220

1 165 924

1 220

1

A098172 as an upper right triangle