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A290319 as a triangular array

1
11
561
4559151
585812254281
9945143895130730451
208845312114122119204601675661
522112580116953365089633619623353325911
15141262523756028010559927621740040244133415876059641201
499661662579909018653722336388823020596102304062768041435557299241531
18487481512530065998563014571734822134174098440460827089038647938020836578722760155851901

A290319 as a square array

11545585994520884552211251514126254996616625184874815125
16598121438931211480116952375602807990901865300659985630
115254513012211933650891055992763722336388145717348221
128730204606336192174004082302059634174098440
14516756233524413341023040624608270890
16633251587607680414386479380
191596435557220836578
11209924722760
115315585
1190
1

A290319 as an upper right triangle

11545585994520884552211251514126254996616625184874815125
16598121438931211480116952375602807990901865300659985630
115254513012211933650891055992763722336388145717348221
128730204606336192174004082302059634174098440
14516756233524413341023040624608270890
16633251587607680414386479380
191596435557220836578
11209924722760
115315585
1190
1

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Last modified December 9 22:27 EST 2019. Contains 329880 sequences. (Running on oeis4.)