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A226936 as a simple table

na(n)
11
24
31
429
54
61
7312
869
94
101
115598
121184
13153
144
151
16176664
1740078
184552
19373
204
211
229966344
232311632
24285414
2518160
26917
274
281
291018924032
30241967774
3130278272
322128226
3374368
342321
354
361
37190191337356
3845914039784
395860964300
40411308056
4116210982
42311784
435933
444
451

[1,4,1,29,4,1,312,69,4,1,5598,1184,153,4,1,176664,
 40078,4552,373,4,1,9966344,2311632,285414,18160,
 917,4,1,1018924032,241967774,30278272,2128226,
 74368,2321,4,1,190191337356,45914039784,
 5860964300,411308056,16210982,311784,5933,4,1]