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A186999 as a simple table

na(n)
01
11
22
35
416
560
6248
71098
85127
924996
10126353
11658914
123531891
1319406185
14109079066
15626240743
163668020847
1721899151005
18133179027307
19824588095681
205195945625141
2133311336524674
22217230789307751
231440698723164953

[1,1,2,5,16,60,248,1098,5127,24996,126353,658914,
 3531891,19406185,109079066,626240743,3668020847,
 21899151005,133179027307,824588095681,
 5195945625141,33311336524674,217230789307751,
 1440698723164953]