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A311680 as a simple table

na(n)
01
14
28
313
416
519
620
722
832
938
1044
1146
1246
1353
1454
1556
1659
1768
1876
1976
2084
2183
2286
2391
2490
2596
26110
27110
28118
29120
30114
31121
32120
33126
34131
35146
36154
37156
38160
39151
40152
41155
42156
43168
44188
45186
46198
47194
48188
49191

[1,4,8,13,16,19,20,22,32,38,44,46,46,53,54,56,59,
 68,76,76,84,83,86,91,90,96,110,110,118,120,114,
 121,120,126,131,146,154,156,160,151,152,155,156,
 168,188,186,198,194,188,191]