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A108031 as a simple table

na(n)
12
23
35
47
59
617
720
836
952
1086
11125
12220
13324
14542
15855
161400
172209
183635
195780
209439
2115150
2224602
2339605
2464328
25103691
26168086
27271495
28439750
29710649
301150794
311860500
323011749
334870975
347883406
3512752070
3620637077
3733385284
3854024302

[2,3,5,7,9,17,20,36,52,86,125,220,324,542,855,
 1400,2209,3635,5780,9439,15150,24602,39605,64328,
 103691,168086,271495,439750,710649,1150794,
 1860500,3011749,4870975,7883406,12752070,20637077,
 33385284,54024302]