login

A101292 as a simple table

na(n)
01
12
25
312
434
5135
6741
75068
840356
9362925
103628855
1139916866
12479001678
136227020891
1487178291305
151307674368120
1620922789888136
17355687428096153
186402373705728171
19121645100408832190
202432902008176640210
2151090942171709440231
221124000727777607680253

[1,2,5,12,34,135,741,5068,40356,362925,3628855,
 39916866,479001678,6227020891,87178291305,
 1307674368120,20922789888136,355687428096153,
 6402373705728171,121645100408832190,
 2432902008176640210,51090942171709440231,
 1124000727777607680253]