A077028 - OEIS

A077028 as a triangular array

1

1 1

1 2 1

1 3 3 1

1 4 5 4 1

1 5 7 7 5 1

1 6 9 10 9 6 1

1 7 11 13 13 11 7 1

1 8 13 16 17 16 13 8 1

1 9 15 19 21 21 19 15 9 1

1 10 17 22 25 26 25 22 17 10 1

1 11 19 25 29 31 31 29 25 19 11 1

1 12 21 28 33 36 37 36 33 28 21 12 1

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

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

1 3 5 7 9 11 13 15 17 19 21

1 4 7 10 13 16 19 22 25 28

1 5 9 13 17 21 25 29 33

1 6 11 16 21 26 31 36

1 7 13 19 25 31 37

1 8 15 22 29 36

1 9 17 25 33

1 10 19 28

1 11 21

1 12

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