login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A308520 as a simple table

na(n)
01
13
29
327
484
5287
61116
74984
825368
9145277
10924684
116475018
1249464756
13409371731
143648595216
1534841512504
16354892721168
173840839273849
1844012775982132
19532368664987942
206778328366073724
2190619575089479631
221269184691838666152
2318583725601041230532

[1,3,9,27,84,287,1116,4984,25368,145277,924684,
 6475018,49464756,409371731,3648595216,34841512504,
 354892721168,3840839273849,44012775982132,
 532368664987942,6778328366073724,
 90619575089479631,1269184691838666152,
 18583725601041230532]