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A276777 as a triangular array

1
11
121
1336
1461927
151047131472
1616103497325319735
17232031606184352217782773763
18323734647910282074059511073441245930065

A276777 as a square array

111111111
12345678
13610162332
61947103203373
2713149716064647
47232531843591028
197352217782074059
277376351107344
1245930065
111111111
12345678
13610162332
61947103203373
2713149716064647
47232531843591028
197352217782074059
277376351107344
1245930065