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A277848 as a simple table

na(n)
21
37
42
55
618
721
811
98
1028
1135
1246
1374
1454
1525
163
17129
1832
1939
2078
2158
22133
2343
2462
256
2695
2791
28152
29171
3087
3171
32190
3316
34148
35328
3619
37181
38167
3951
40227
41405
42618
43355
44344
45254
46440
4783
48926
4922
5067
51277
52100
53157
541400
55195
56333
57186
581144
59232
60259
61445
62282
63105
6412
65237
66110
67115
68388
69211
70468
71383
72492
73144
74594
75307
76366
77206
78126
79533
80324
819
82463
83642

[1,7,2,5,18,21,11,8,28,35,46,74,54,25,3,129,32,39,
 78,58,133,43,62,6,95,91,152,171,87,71,190,16,148,
 328,19,181,167,51,227,405,618,355,344,254,440,83,
 926,22,67,277,100,157,1400,195,333,186,1144,232,
 259,445,282,105,12,237,110,115,388,211,468,383,
 492,144,594,307,366,206,126,533,324,9,463,642]