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”).

A230893 as a simple table

na(n)
10
22
32
410
522
670
7186
8538
91494
104230
1111866
1233434
1394006
14264582
15744314
162094362
175892502
1816579462
1946647706
20131248794
21369281782
221039014534
232923376826
248225233690
2523142568790
2665114084998
27183205408986
28515467935386

[0,2,2,10,22,70,186,538,1494,4230,11866,33434,
 94006,264582,744314,2094362,5892502,16579462,
 46647706,131248794,369281782,1039014534,
 2923376826,8225233690,23142568790,65114084998,
 183205408986,515467935386]