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A070997 as a simple table

n a(n)
0 1
1 7
2 55
3 433
4 3409
5 26839
6 211303
7 1663585
8 13097377
9 103115431
10 811826071
11 6391493137
12 50320119025
13 396169459063
14 3119035553479
15 24556114968769
16 193329884196673
17 1522082958604615
18 11983333784640247
19 94344587318517361

[1,7,55,433,3409,26839,211303,1663585,13097377,
 103115431,811826071,6391493137,50320119025,
 396169459063,3119035553479,24556114968769,
 193329884196673,1522082958604615,
 11983333784640247,94344587318517361]

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Last modified September 21 15:24 EDT 2017. Contains 292300 sequences.