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A007783 as a simple table

na(n)
13
26
39
418
522
632
746
858
977
1097
11114
12135
13160
14186
15218
16238
17279
18312
19349

[3,6,9,18,22,32,46,58,77,97,114,135,160,186,218,
 238,279,312,349]