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A206924 as a simple table

na(n)
11
21
33
44
56
66
710
89
99
109
1115
1213
1311
1411
1521
1618
1714
1816
1914
2014
2114
2216
2328
2424
2516
2616
2718
2818
2918
3018
3136
3231
3321
3419
3519
3619
3725
3821
3923
4023
4119
4221
4321
4421
4521
4625
4745
4839
4923
5025
5123
5223
5323
5421
5529
5629
5723
5821
5925
6025
6125
6227
6355
6448
6530
6626
6726

[1,1,3,4,6,6,10,9,9,9,15,13,11,11,21,18,14,16,14,
 14,14,16,28,24,16,16,18,18,18,18,36,31,21,19,19,
 19,25,21,23,23,19,21,21,21,21,25,45,39,23,25,23,
 23,23,21,29,29,23,21,25,25,25,27,55,48,30,26,26]