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”).

A135974 as a simple table

na(n)
12
24
34
46
56
612
78
812
910
1012
1112
1224
1314
1416
1516
1618
1718
1824
1920
2024
2124
2224
2324
2436
2526
2628
2728
2830
2930
3036
3132
3236
3336
3436
3536
3648
3738
3840
3940
4048
4142
4248
4344
4448
4548
4648
4748
4860
4950
5054
5152
5254
5354
5460
5556
5660
5760
5860
5960
60120
6162
6263
6364
6466
6566
6672
6768
6870
6970

[2,4,4,6,6,12,8,12,10,12,12,24,14,16,16,18,18,24,
 20,24,24,24,24,36,26,28,28,30,30,36,32,36,36,36,
 36,48,38,40,40,48,42,48,44,48,48,48,48,60,50,54,
 52,54,54,60,56,60,60,60,60,120,62,63,64,66,66,72,
 68,70,70]