login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A196556 as a simple table

na(n)
01
13
212
366
4483
54476
650454
7671649
810328118
9180341094
103527385345
1176435691250
121818255212490
1347118807865863
141321527658352016
1539889359465259446
161289471521115731611
1744450463108654209136
181627806562174453037802

[1,3,12,66,483,4476,50454,671649,10328118,
 180341094,3527385345,76435691250,1818255212490,
 47118807865863,1321527658352016,39889359465259446,
 1289471521115731611,44450463108654209136,
 1627806562174453037802]