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A149611 as a simple table

na(n)
01
11
25
315
463
5239
61011
74189
818057
977893
10341857
111507917
126713433
1330039549
14135215513
15611198839
162774510515
1712637593187
1857749756479
19264625723379
201215708590859
215597697967779
2225828427689907
23119400088500319
24552925785793747
252564597556922403
2611912703626624975
2755410318800011595

[1,1,5,15,63,239,1011,4189,18057,77893,341857,
 1507917,6713433,30039549,135215513,611198839,
 2774510515,12637593187,57749756479,264625723379,
 1215708590859,5597697967779,25828427689907,
 119400088500319,552925785793747,2564597556922403,
 11912703626624975,55410318800011595]