A156074 - OEIS

A156074 as a triangular array

1

1 1

1 2 1

1 2 2 1

1 4 4 4 1

1 2 4 4 2 1

1 4 4 6 4 4 1

1 2 4 4 4 4 2 1

1 4 4 6 4 6 4 4 1

1 6 8 8 8 8 8 8 6 1

1 2 6 8 6 8 6 8 6 2 1

1 6 6 10 10 10 10 10 10 6 6 1

1 4 8 8 10 12 10 12 10 8 8 4 1

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

1 2 2 4 2 4 2 4 6 2 6 4

1 2 4 4 4 4 4 8 6 6 8

1 4 4 6 4 6 8 8 10 8

1 2 4 4 4 8 6 10 10

1 4 4 6 8 8 10 12

1 2 4 8 6 10 10

1 4 8 8 10 12

1 6 6 10 10

1 2 6 8

1 6 8

1 4

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