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A087727 as a triangular array

1
15
11442
128210462
14866034326006
1751650150156006087516
111035755005034034011085361385670
11547007140140142942877597522133931823371634
120812740346528493802439504192178474296424938800414315330

A087727 as a square array

111111111
514284875110154208
4221066016503575700712740
46234321501550050140140346528
60066006034034014294284938024
875161108536775975239504192
138567021339318178474296
23371634424938800
414315330
111111111
514284875110154208
4221066016503575700712740
46234321501550050140140346528
60066006034034014294284938024
875161108536775975239504192
138567021339318178474296
23371634424938800
414315330