A177517 - OEIS

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A177517 as a triangular array

1

0 1

0 0 1

0 0 1 1

0 0 0 2 1

0 0 0 2 3 1

0 0 0 1 5 4 1

0 0 0 0 6 9 5 1

0 0 0 0 5 15 14 6 1

0 0 0 0 3 20 29 20 7 1

0 0 0 0 1 22 49 49 27 8 1

0 0 0 0 0 20 71 98 76 35 9 1

0 0 0 0 0 15 90 169 174 111 44 10 1

0 0 0 0 0 9 101 259 343 285 155 54 11 1

0 0 0 0 0 4 101 359 602 628 440 209 65 12 1

0 0 0 0 0 1 90 455 961 1230 1068 649 274 77 13 1

A177517 as a square array

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

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

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

1 2 2 1 0 0 0 0 0 0 0 0 0

1 3 5 6 5 3 1 0 0 0 0 0

1 4 9 15 20 22 20 15 9 4 1

1 5 14 29 49 71 90 101 101 90

1 6 20 49 98 169 259 359 455

1 7 27 76 174 343 602 961

1 8 35 111 285 628 1230

1 9 44 155 440 1068

1 10 54 209 649

1 11 65 274

1 12 77

1 13

1

A177517 as an upper right triangle