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A366108 as a simple table

na(n)
31
41
53
65
710
817
935
1063
11126
12231
13462
14858
151716
163217
176435
1812155
1924310
2046189
2192378
22176358
23352716
24676039
251352078
262600150
275200300
2810029150
2920058300
3038779380
3177558760
32150270097
33300540195
34583401555
351166803110
362268783825
374537567650
388836315950

[1,1,3,5,10,17,35,63,126,231,462,858,1716,3217,
 6435,12155,24310,46189,92378,176358,352716,676039,
 1352078,2600150,5200300,10029150,20058300,
 38779380,77558760,150270097,300540195,583401555,
 1166803110,2268783825,4537567650,8836315950]