login

A318687 as a simple table

na(n)
12
21
32
43
52
63
74
812
914
1017
1114
1213
1312
1420
1532
16406
17538
18703
19842
201085
211310
221465
231544
241570
251968
262132
272000
282480
292176
302816
314096
321060280

[2,1,2,3,2,3,4,12,14,17,14,13,12,20,32,406,538,
 703,842,1085,1310,1465,1544,1570,1968,2132,2000,
 2480,2176,2816,4096,1060280]