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A181886 as a triangular array

0
10
530
221540
94662160
399282923180
169111973931374190
71645073166858618147110
30348214927069248877320857120
12855791044

A181886 as a square array

01522943991691716430348128557
031566282119750732149291044
04219239316687069
06311375862488
0841181773
0947208
01157
012
0
01522943991691716430348128557
031566282119750732149291044
04219239316687069
06311375862488
0841181773
0947208
01157
012
0