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A268628 as a simple table

na(n)
13
29
39
424
542
624
760
8174
9174
1060
11144
12666
131086
14666
15144
16336
172430
186300
196300
202430
21336
22768
238586
2434890
2555452
2634890
278586
28768
291728
3029646
31187224
32467190
33467190
34187224
3529646
361728
373840
38100602
39982086
403819654
416000978
423819654

[3,9,9,24,42,24,60,174,174,60,144,666,1086,666,
 144,336,2430,6300,6300,2430,336,768,8586,34890,
 55452,34890,8586,768,1728,29646,187224,467190,
 467190,187224,29646,1728,3840,100602,982086,
 3819654,6000978,3819654]