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A193897 as a triangular array

1
21
363
49126
512182010
61524303015
7183040454221
821365060635628
92442607584847236
10274870901051121089045
1130548010512614014413511055
1233

A193897 as a square array

123456789101112
1691215182124273033
31218243036424854
620304050607080
103045607590105
15426384105126
215684112140
2872108144
3690135
45110
55

A193897 as an upper right triangle

123456789101112
1691215182124273033
31218243036424854
620304050607080
103045607590105
15426384105126
215684112140
2872108144
3690135
45110
55

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Last modified November 26 21:07 EST 2021. Contains 349344 sequences. (Running on oeis4.)