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A049944 as a simple table

na(n)
11
21
34
47
517
631
765
8143
9334
10604
111211
122435
134918
1410105
1521087
1645881
17107931
18194776
19389555
20779123
211558294
223116857
236234591
2412472889
2524961947
2650010738
27100303100
28201774939
29408226175
30835179706
311745700565
323799324205
338936122800
3416126545036
3532253090075

[1,1,4,7,17,31,65,143,334,604,1211,2435,4918,
 10105,21087,45881,107931,194776,389555,779123,
 1558294,3116857,6234591,12472889,24961947,
 50010738,100303100,201774939,408226175,835179706,
 1745700565,3799324205,8936122800,16126545036,
 32253090075]