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A024978 as a simple table

na(n)
12
24
36
49
511
613
714
816
918
1021
1123
1225
1327
1429
1530
1633
1735
1836
1939
2040
2142
2245
2346
2449
2550
2654
2756
2857
2960
3061
3164
3266
3369
3471
3572
3674
3776
3878
3979
4081
4184
4285
4386
4489
4590
4694
4796
4898
4999
50103
51104
52106
53109
54110
55112
56114
57115
58119
59120
60122
61124
62127
63130
64131
65132
66134
67136
68138

[2,4,6,9,11,13,14,16,18,21,23,25,27,29,30,33,35,
 36,39,40,42,45,46,49,50,54,56,57,60,61,64,66,69,
 71,72,74,76,78,79,81,84,85,86,89,90,94,96,98,99,
 103,104,106,109,110,112,114,115,119,120,122,124,
 127,130,131,132,134,136,138]