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A174120 as a simple table

na(n)
11
22
32
41
51
68
736
8115
9307
10738
111662
123589
137541
1415564
1531752
1664295
17129575
18260358
19522178
201046105
212094281
224190992
238384812
2416772891
2533549531
2667103338
27134211526
28268428525
29536863197
301073733268
312147474192

[1,2,2,1,1,8,36,115,307,738,1662,3589,7541,15564,
 31752,64295,129575,260358,522178,1046105,2094281,
 4190992,8384812,16772891,33549531,67103338,
 134211526,268428525,536863197,1073733268,
 2147474192]