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A177888 as a triangular array

1
21
331
4571
5717431
693125718071
711498716553732634431
8137122097560314294967297106500569508071
9159746914870849571580604871184467440737095516171134237130554218443610004431

A177888 as a square array

123456789
13579111315
171731497197
14325787122094691
11807655377560314870849
132634434294967297571580604871
11065005695080718446744073709551617
1113423713055421844361000443
1
123456789
13579111315
171731497197
14325787122094691
11807655377560314870849
132634434294967297571580604871
11065005695080718446744073709551617
1113423713055421844361000443
1