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A090888 as a triangular array

1
20
411
8531
1619942
3265271473
64211814623115
1286652431467337188
2562059729454227119602913
512630521871394697373192974721
1024191716561424621231151600311

A090888 as a square array

12481632641282565121024
01519652116652059630519171
139278124372921876561
14144614645413944246
2723732276972123
311371193731151
51860192600
82997311
1347
21

A090888 as an upper right triangle

12481632641282565121024
01519652116652059630519171
139278124372921876561
14144614645413944246
2723732276972123
311371193731151
51860192600
82997311
1347
21

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Last modified February 18 02:20 EST 2018. Contains 299297 sequences. (Running on oeis4.)