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A208727 as a triangular array

0
10
210
3310
45410
578610
691215810
7111625271410
813203552602010
9152445781311233610
101728551042103162856010
1119326513029055183564810810
122136

A208727 as a square array

0123456789101112
013579111315171921
014812162024283236
016152535455565
018275278104130
011460131210290
0120123316551
0136285835
0160648
01108
01
0
0123456789101112
013579111315171921
014812162024283236
016152535455565
018275278104130
011460131210290
0120123316551
0136285835
0160648
01108
01
0