login

A128821 as a triangular array

1
31
591
730181
970100301
11135350250451
132319451225525631
15364215644103430980841
1754043681293615876823216801081
1976581003276058212476281764027001351

A128821 as a square array

135791113151719
193070135231364540765
118100350945215643688100
130250122544101293632760
14552534301587658212
163980823247628
184168017640
11082700
1135
1
135791113151719
193070135231364540765
118100350945215643688100
130250122544101293632760
14552534301587658212
163980823247628
184168017640
11082700
1135
1