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A309557 as a triangular array

2
53
884
1113115
141818146
17232523177
2028323228208
233339413933239
263846505046382610
29435359615953432911
3248606872726860483212
355367778385837767533513

A309557 as a square array

258111417202326293235
38131823283338434853
4111825323946536067
51423324150596877
617283950617283
7203346597285
82338536883
926436077
10294867
113253
1235
13
258111417202326293235
38131823283338434853
4111825323946536067
51423324150596877
617283950617283
7203346597285
82338536883
926436077
10294867
113253
1235
13