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A047997 as a triangular array

1
12
135
14812
15132432
1618437394
172569141227289
1832104252480734910
1941150414920165624302934
1105020764916363370574481509686
11161277967

A047997 as a square array

11111111111
234567891011
5813182532415061
12244369104150207277
3273141252414649967
942274809201636
28973416563370
91024305744
29348150
9686

A047997 as an upper right triangle

11111111111
234567891011
5813182532415061
12244369104150207277
3273141252414649967
942274809201636
28973416563370
91024305744
29348150
9686

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Last modified March 29 05:28 EDT 2024. Contains 371264 sequences. (Running on oeis4.)