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A307910 as a triangular array

1
10
110
1230
13870
141532190
152481136510
16351604595921410
17482751120267326243930
186343222758064158491177611070
198063741041937559136951755334431390

A307910 as a square array

11111111111
0123456789
038152435486380
073281160275432637
019136459112022754104
0515922673806419375
014126241584959136
03931177695175
0110753344
03139
0
11111111111
0123456789
038152435486380
073281160275432637
019136459112022754104
0515922673806419375
014126241584959136
03931177695175
0110753344
03139
0