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A038278 as a triangular array

1
712
49168144
343176430241728
240116464423364838420736
16807144060493920846720725760248832
117649121010451861601185408015240960104509442985984
823543988251650824368145212480

A038278 as a square array

1749343240116807117649823543
1216817641646414406012101049882516
144302442336493920518616050824368
17284838484672011854080145212480
2073672576015240960
24883210450944
2985984
1749343240116807117649823543
1216817641646414406012101049882516
144302442336493920518616050824368
17284838484672011854080145212480
2073672576015240960
24883210450944
2985984