login

A001294 as a triangular array

2576
12881288
616672616
280336336280
120160176160120
487288887248
16324048403216
01616242416160
001602401600

A001294 as a square array

25761288616280120481600
12886723361607232160
61633617688401616
2801608848240
12072402424
4832160
161616
00
0
25761288616280120481600
12886723361607232160
61633617688401616
2801608848240
12072402424
4832160
161616
00
0