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A309993 as a triangular array

1
10
120
1820
1222600
1521684200
11148046924200
1240327065001866000
14941205446304340783060000
11004417082795664138781228303060000
120261383201514324

A309993 as a square array

11111111111
028225211424049410042026
022616880432701205441708138320
00426926500463042795661514324
0042186634078413878
0003060122830
0003060
000
00
0

A309993 as an upper right triangle

11111111111
028225211424049410042026
022616880432701205441708138320
00426926500463042795661514324
0042186634078413878
0003060122830
0003060
000
00
0

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Last modified January 29 01:54 EST 2020. Contains 331328 sequences. (Running on oeis4.)