login

A162620 as a triangular array

2
23
345
4567
7891011
8910111213
11121314151617
1213141516171819
151617181920212223
20212223242526272829
2122232425262728293031
2627282930313233

A162620 as a square array

223478111215202126
34589121316212227
56910131417222328
71011141518232429
1112151619242530
13161720252631
171821262732
1922272833
232829
2930
31
223478111215202126
34589121316212227
56910131417222328
71011141518232429
1112151619242530
13161720252631
171821262732
1922272833
232829
2930
31