login

A259554 as a simple table

na(n)
11
27
352
4403
53206
625954
7212738
81760035
914666470
10122920642
111035046816
128749594462
1374207078908
14631140253072
155381022869822
1645975731083555
17393556869530630
183374504760608026
1928977403637496104
20249167023897718138

[1,7,52,403,3206,25954,212738,1760035,14666470,
 122920642,1035046816,8749594462,74207078908,
 631140253072,5381022869822,45975731083555,
 393556869530630,3374504760608026,
 28977403637496104,249167023897718138]