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A143218 as a triangular array

1
39
51525
7213549
927456381
1133557799121
13396591117143169
154575105135165195225
175185119153187221255289
195795133171209247285323361
2163105147189231273315357399441

A143218 as a square array

13579111315171921
9152127333945515763
2535455565758595105
49637791105119133147
8199117135153171189
121143165187209231
169195221247273
225255285315
289323357
361399
441

A143218 as an upper right triangle

13579111315171921
9152127333945515763
2535455565758595105
49637791105119133147
8199117135153171189
121143165187209231
169195221247273
225255285315
289323357
361399
441

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Last modified March 29 09:28 EDT 2024. Contains 371268 sequences. (Running on oeis4.)