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A074530 as a simple table

na(n)
03
113
277
3547
44193
533043
6262937
72099467
816784033
9134237923
101073801897
118590113787
1268720012273
13549757416403
144398051310457
1535184386470507
16281475019822913
172251799942956483
1818014398897164617
19144115189238641627

[3,13,77,547,4193,33043,262937,2099467,16784033,
 134237923,1073801897,8590113787,68720012273,
 549757416403,4398051310457,35184386470507,
 281475019822913,2251799942956483,
 18014398897164617,144115189238641627]