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A319480 as a simple table

na(n)
20
30
41
53
67
710
814
919
1041
1142
1274
1379
1485
15100
16154
17163
18207
19224
20245
21309
22318
23342
24449
25536
26590
27553
28581
29715
30738
31856
32912
331085
341037
351324
361229
371477
381442
391491
401785
411730
421952
431986
442240
452316
462191
472474
482748
492836
503176

[0,0,1,3,7,10,14,19,41,42,74,79,85,100,154,163,
 207,224,245,309,318,342,449,536,590,553,581,715,
 738,856,912,1085,1037,1324,1229,1477,1442,1491,
 1785,1730,1952,1986,2240,2316,2191,2474,2748,2836,
 3176]