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A006381 as a simple table

na(n)
01
11
24
37
419
532
668
7114
8210
9336
10562
11862
121349
131987
142950
154201
165991
178278
1811422
1915386
2020660
2127218
2235718
2346158
2459401
2575475
2695494
27119545
28149035
29184118
30226562
31276620
32336470
33406490
34489344
35585572
36698397
37828549
38979896

[1,1,4,7,19,32,68,114,210,336,562,862,1349,1987,
 2950,4201,5991,8278,11422,15386,20660,27218,35718,
 46158,59401,75475,95494,119545,149035,184118,
 226562,276620,336470,406490,489344,585572,698397,
 828549,979896]