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A268041 as a triangular array

1
00
111
0000
21212
000000
4232324
00000000
10573737510
0000000000
2614178148148171426
000000000000
80424824382034203824484280

A268041 as a square array

1010204010026080
01010205014042
1020307017048
01020308024
20307014038
020308020
407014034
0508020
10017038
014024
26048
042
80
1010204010026080
01010205014042
1020307017048
01020308024
20307014038
020308020
407014034
0508020
10017038
014024
26048
042
80