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A247498 as a triangular array

1
01
-111
0021
5-2331
002841
-6116-3181551
00232522461
1385-27263481651103571
0021284844801984881
-505217936-13835281395200010853226391

A247498 as a square array

10-1050-61013850-50521
110-20160-27207936
1232-32632-1383
138183248128528
1415521654841395
15241104802000
16351981085
1748322
1863
19
1
10-1050-61013850-50521
110-20160-27207936
1232-32632-1383
138183248128528
1415521654841395
15241104802000
16351981085
1748322
1863
19
1