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A317884 as a simple table

na(n)
11
21
31
42
54
68
714
826
947
1087
11160
12295
13540
14997
151832
163369
176197
1811406
1920975
2038594
2170991
22130610
23240275
24442043
25813184
261496053
272752251
285063319
299314879
3017136632
3131526032
3257998423
33106699160
34196294065
35361120800
36664352454
371222204958

[1,1,1,2,4,8,14,26,47,87,160,295,540,997,1832,
 3369,6197,11406,20975,38594,70991,130610,240275,
 442043,813184,1496053,2752251,5063319,9314879,
 17136632,31526032,57998423,106699160,196294065,
 361120800,664352454,1222204958]