login

A252864 as a simple table

na(n)
01
11
22
33
45
58
612
718
825
935
1051
1175
12110
13161
14236
15346
16507
17743
181089
191596
202339
213428
225024
237363
2410791
2515815
2623178
2733969
2849784
2972962
30106931

[1,1,2,3,5,8,12,18,25,35,51,75,110,161,236,346,
 507,743,1089,1596,2339,3428,5024,7363,10791,15815,
 23178,33969,49784,72962,106931]