A113749 - OEIS

A113749 as a triangular array

1

1 1

1 2 1

1 3 4 1

1 4 7 6 1

1 5 10 13 10 1

1 6 13 18 19 12 1

1 7 16 25 30 27 18 1

1 8 19 30 39 42 39 22 1

1 9 22 37 48 61 58 49 30 1

1 10 25 42 61 72 79 78 63 34 1

1 11 28 49 70 87 102 103 102 79 42 1

1 12 31

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 4 7 10 13 16 19 22 25 28 31

1 6 13 18 25 30 37 42 49

1 10 19 30 39 48 61 70

1 12 27 42 61 72 87

1 18 39 58 79 102

1 22 49 78 103

1 30 63 102

1 34 79

1 42

1