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A049895 as a simple table

na(n)
11
21
33
44
55
613
723
837
950
10136
11269
12529
131034
141969
153545
165650
177619
1820887
1941771
2083533
21167042
22333985
23667577
241333714
252663747
265312257
2710561868
2820873284
2940746839
3077515135
31139469243
32222296635
33299811770
34821920174

[1,1,3,4,5,13,23,37,50,136,269,529,1034,1969,3545,
 5650,7619,20887,41771,83533,167042,333985,667577,
 1333714,2663747,5312257,10561868,20873284,
 40746839,77515135,139469243,222296635,299811770,
 821920174]