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A154559 as a triangular array

1
20
320
4640
5121690
6204045210
73080135126510
8421403154413571270
9562246301176142810163230
1072336113426464284457229078350

A154559 as a square array

12345678910
026122030425672
04164080140224336
09451353156301134
02112644111762646
05135714284284
012710164572
03232907
0835
0

A154559 as an upper right triangle

12345678910
026122030425672
04164080140224336
09451353156301134
02112644111762646
05135714284284
012710164572
03232907
0835
0

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Last modified October 23 21:00 EDT 2018. Contains 316538 sequences. (Running on oeis4.)