login

A018838 as a simple table

na(n)
00
12
24
32
44
54
64
76
86
96
108
118
128
1310
1410
1510
1612
1712
1812
1914
2014
2114
2216
2316
2416
2518
2618
2718
2820
2920
3020
3122
3222
3322
3424
3524
3624
3726
3826
3926
4028
4128
4228
4330
4430
4530
4632
4732
4832
4934
5034
5134
5236
5336
5436
5538
5638
5738
5840
5940
6040
6142
6242
6342
6444
6544
6644

[0,2,4,2,4,4,4,6,6,6,8,8,8,10,10,10,12,12,12,14,
 14,14,16,16,16,18,18,18,20,20,20,22,22,22,24,24,
 24,26,26,26,28,28,28,30,30,30,32,32,32,34,34,34,
 36,36,36,38,38,38,40,40,40,42,42,42,44,44,44]