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A206735 as a triangular array

1
01
021
0331
04641
05101051
0615201561
072135352171
08285670562881
093684126126843691
0104512021025221012045101
0115516533046246233016555111

A206735 as a square array

100000000000
1234567891011
13610152128364555
141020355684120165
15153570126210330
162156126252462
172884210462
1836120330
1945165
11055
111
1
100000000000
1234567891011
13610152128364555
141020355684120165
15153570126210330
162156126252462
172884210462
1836120330
1945165
11055
111
1