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A351393 as a simple table

na(n)
31
41
52
64
74
85
96
108
118
1210
1312
1412
1514
1615
1717
1818
1920
2020
2122
2224
2325
2426
2528
2629
2731
2832
2934
3035
3137
3238
3340
3441
3543
3644

[1,1,2,4,4,5,6,8,8,10,12,12,14,15,17,18,20,20,22,
 24,25,26,28,29,31,32,34,35,37,38,40,41,43,44]