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A278039 as a simple table

na(n)
00
12
24
36
47
59
611
713
815
917
1019
1120
1222
1324
1426
1528
1630
1731
1833
1935
2037
2139
2241
2343
2444
2546
2648
2750
2851
2953
3055
3157
3259
3361
3463
3564
3666
3768
3870
3972
4074
4175
4277
4379
4481
4583
4685
4787
4888
4990
5092
5194
5296
5398
54100
55101
56103
57105
58107
59109
60111
61112
62114
63116
64118
65120
66122
67124
68125
69127
70129
71131
72132
73134
74136

[0,2,4,6,7,9,11,13,15,17,19,20,22,24,26,28,30,31,
 33,35,37,39,41,43,44,46,48,50,51,53,55,57,59,61,
 63,64,66,68,70,72,74,75,77,79,81,83,85,87,88,90,
 92,94,96,98,100,101,103,105,107,109,111,112,114,
 116,118,120,122,124,125,127,129,131,132,134,136]