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”).

A281955 as a simple table

na(n)
11
22
32
44
58
64
78
830
930
108
1116
12112
13133
14112
1516
1632
17420
18587
19587
20420
2132
2264
231576
242559
253389
262559
271576
2864
29128
305912
3111251
3219089
3319089
3411251
355912
36128
37256
3822176
3949293
40111354
41130416
42111354
4349293
4422176
45256
46512
4783184
48216274

[1,2,2,4,8,4,8,30,30,8,16,112,133,112,16,32,420,
 587,587,420,32,64,1576,2559,3389,2559,1576,64,128,
 5912,11251,19089,19089,11251,5912,128,256,22176,
 49293,111354,130416,111354,49293,22176,256,512,
 83184,216274]