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A276946 as a simple table

na(n)
11
22
33
46
510
64
715
85
921
1028
1136
129
1345
1414
1555
1666
1778
1891
19105
20120
21136
22153
23171
24190
25210
26231
27253
28276
29300
307
31325
3220
33351
34378
35406
368
37435
3827
39465
40496
41528
4235
43561
4444
45595
46630
47666
48703
49741
50780
51820
52861
53903
54946
55990
561035
571081
581128
591176
6013
611225
6254
631275
641326
651378
6619
671431
6865
691485
701540
711596
7277
731653
7490

[1,2,3,6,10,4,15,5,21,28,36,9,45,14,55,66,78,91,
 105,120,136,153,171,190,210,231,253,276,300,7,325,
 20,351,378,406,8,435,27,465,496,528,35,561,44,595,
 630,666,703,741,780,820,861,903,946,990,1035,1081,
 1128,1176,13,1225,54,1275,1326,1378,19,1431,65,
 1485,1540,1596,77,1653,90]