login

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

A228938 as a simple table

na(n)
01
12
210
366
4570
56162
680010
71212066
820983770
9408687282
108844164010
11210530630466
125467167038970
13153805368043602
144659779072312010
15151259403573751266
165237308594356166170
17192673897986624475122
187505181282611209004010
19308589102795660836942466

[1,2,10,66,570,6162,80010,1212066,20983770,
 408687282,8844164010,210530630466,5467167038970,
 153805368043602,4659779072312010,
 151259403573751266,5237308594356166170,
 192673897986624475122,7505181282611209004010,
 308589102795660836942466]