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”).

A144773 as a simple table

na(n)
01
11
211
3231
47161
5293601
614973651
7913392711
864850882481
95252921480961
10478015854767451
1148279601331512551
125359035747797893161
13648443325483545072481
1484946075638344404495011
1511977396665006561033796551
161808586896415990716103279201
17291182490322974505292627951361

[1,1,11,231,7161,293601,14973651,913392711,
 64850882481,5252921480961,478015854767451,
 48279601331512551,5359035747797893161,
 648443325483545072481,84946075638344404495011,
 11977396665006561033796551,
 1808586896415990716103279201,
 291182490322974505292627951361]