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A199656 as a triangular array

1
13
1719
11565175
1312117812101
16366533671152931031
112720591419761741201811543607
12556305589753250891288991408518511012415

A199656 as a square array

11111111
37153163127255
196521166520596305
17578133671419758975
21011152961741325089
310312018111288991
5436074085185
11012415
11111111
37153163127255
196521166520596305
17578133671419758975
21011152961741325089
310312018111288991
5436074085185
11012415