A255741 - OEIS

A255741 as a triangular array

1

1 1

1 2 1

1 3 3 1

1 4 5 3 1

1 5 7 7 4 1

1 6 9 13 9 4 1

1 7 11 21 16 11 4 1

1 8 13 31 25 22 13 4 1

1 9 15 43 36 37 28 15 5 1

1 10 17 57 49 56 49 40 17 5 1

1 11 19 73 64 79 76 85 43 19 5 1

1 12 21 91 81 106 109 156 89 49 21 5 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 3 7 13 21 31 43 57 73 91

1 4 9 16 25 36 49 64 81

1 4 11 22 37 56 79 106

1 4 13 28 49 76 109

1 4 15 40 85 156

1 5 17 43 89

1 5 19 49

1 5 21

1 5

1