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”).

A143006 as a simple table

na(n)
00
11
2129
330251
411129080
55985956824
64501140404544
74577449694922432
86130634638657941504
910576998168036159614976
1023068077837238986190848000
1162571876653848665596203008000
12208106990164246904792046895104000

[0,1,129,30251,11129080,5985956824,4501140404544,
 4577449694922432,6130634638657941504,
 10576998168036159614976,
 23068077837238986190848000,
 62571876653848665596203008000,
 208106990164246904792046895104000]