login

A130305 as a triangular array

1
21
331
4641
6101051
1216201561
282836352171
64566471562881
136120120135127843691
27225624025526221112045101

A130305 as a square array

12346122864136272
13610162856120256
1410203664120240
15153571135255
162156127262
172884211
1836120
1945
110
1
12346122864136272
13610162856120256
1410203664120240
15153571135255
162156127262
172884211
1836120
1945
110
1