login

A152440 as a triangular array

1
11
231
3951
5222071
851653591
1311119014054111
2123351149025577131
34474129515541035418104151
559423130457837621925637135171
8918367285127201257378653276

A152440 as a square array

1123581321345589
13922511112334749421836
152065190511129531307285
17351404901554457812720
19542551035376212573
1117741819257865
1131046373276
115135
117
1
1123581321345589
13922511112334749421836
152065190511129531307285
17351404901554457812720
19542551035376212573
1117741819257865
1131046373276
115135
117
1