login

A268457 as a triangular array

2
34
497
5162511
625616716
73612122917622
84921158185245629
964337123127763146116937
1081505231171601320411536297146
11100721397715816415266253542032749656
12121

A268457 as a square array

23456789101112
49162536496481100121
72561121211337505721
1167229581123123113977
161768522776716015816
2245631461320441526
2911691153662535
37297142032
467496
56
23456789101112
49162536496481100121
72561121211337505721
1167229581123123113977
161768522776716015816
2245631461320441526
2911691153662535
37297142032
467496
56