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A207718 as a simple table

na(n)
16
236
3114
4450
51644
66186
723010
885992
9320742
101197318
114467984
1216675494
1362232582
14232257108
15866792178
163234917538
1712072868380
1845056571498
19168153392514
20627557039160
212342074698438
228740741860870
2332620892573088

[6,36,114,450,1644,6186,23010,85992,320742,
 1197318,4467984,16675494,62232582,232257108,
 866792178,3234917538,12072868380,45056571498,
 168153392514,627557039160,2342074698438,
 8740741860870,32620892573088]