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A151555 as a simple table

na(n)
01
13
24
35
45
510
612
79
85
910
1013
1115
1220
1332
1432
1517
165
1710
1813
1915
2020
2132
2233
2323
2420
2533
2641
2750
2872
2996
3080
3133
325
3310
3413
3515
3620
3732
3833
3923
4020
4133
4241
4350
4472
4596
4681
4739
4820
4933
5041
5150
5272
5397
5489
5566
5673
57107
58132
59172
60240
61272
62192
6365
645
6510
6613
6715
6820
6932
7033
7123

[1,3,4,5,5,10,12,9,5,10,13,15,20,32,32,17,5,10,13,
 15,20,32,33,23,20,33,41,50,72,96,80,33,5,10,13,15,
 20,32,33,23,20,33,41,50,72,96,81,39,20,33,41,50,
 72,97,89,66,73,107,132,172,240,272,192,65,5,10,13,
 15,20,32,33,23]