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A109435 as a triangular array

1
21
431
8731
1615831
323119831
64634320831
128127944720831
2562552011074820831
5125114232381114820831
102410238805202511124820831
2048204718151121558

A109435 as a square array

124816326412825651210242048
13715316312725551110232047
1381943942014238801815
13820471072385201121
1382048111251558
1382048112
1382048
13820
138
13
1
124816326412825651210242048
13715316312725551110232047
1381943942014238801815
13820471072385201121
1382048111251558
1382048112
1382048
13820
138
13
1