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A193891 as a triangular array

1
12
258
381420
411203040
51426405570
61732507091112
720386085112140168
8234470100133168204240
9265080115154196240285330
10295690130175224276330

A193891 as a square array

112345678910
25811141720232629
81420263238445056
2030405060708090
40557085100115130
7091112133154175
112140168196224
168204240276
240285330
330

A193891 as an upper right triangle

112345678910
25811141720232629
81420263238445056
2030405060708090
40557085100115130
7091112133154175
112140168196224
168204240276
240285330
330

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)