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A135878 as a triangular array

1
11
221
6631
25251241
138138631951
9709704211132861
8390839034728321903871
867968679634380742015602835081
10495461049546399463784061525025024116391
1456313514563135

A135878 as a square array

112625138970839086796104954614563135
12625138970839086796104954614563135
131263421347234380399463
1419113832742078406
1528190156015250
16382832502
1750411
1863
19
1
112625138970839086796104954614563135
12625138970839086796104954614563135
131263421347234380399463
1419113832742078406
1528190156015250
16382832502
1750411
1863
19
1