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A283386 as a triangular array

0
00
010
0330
01960190
091532532910
03994420808744203990
01734345311166241166243453117340
0725725741615922502993934159225025741672570
02975418627172078853171707838

A283386 as a square array

0000000000
01319913991734725729754
03605324420345312574161862717
0195328087116624159225020788531
0914420116624299393471707838
0399345311592250
01734257416
07257
0
0000000000
01319913991734725729754
03605324420345312574161862717
0195328087116624159225020788531
0914420116624299393471707838
0399345311592250
01734257416
07257
0