A128227 - OEIS

A128227 as a triangular array

1

1 1

1 2 1

1 2 3 1

1 2 3 4 1

1 2 3 4 5 1

1 2 3 4 5 6 1

1 2 3 4 5 6 7 1

1 2 3 4 5 6 7 8 1

1 2 3 4 5 6 7 8 9 1

1 2 3 4 5 6 7 8 9 10 1

1 2 3 4 5 6 7 8 9 10 11 1

1 2 3 4 5 6 7 8 9 10 11 12 1

1 1 1 1 1 1 1 1 1 1 1 1 1

1 2 2 2 2 2 2 2 2 2 2 2

1 3 3 3 3 3 3 3 3 3 3

1 4 4 4 4 4 4 4 4 4

1 5 5 5 5 5 5 5 5

1 6 6 6 6 6 6 6

1 7 7 7 7 7 7

1 8 8 8 8 8

1 9 9 9 9

1 10 10 10

1 11 11

1 12

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