A217959 - OEIS

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A217959 as a simple table

n	a(n)
1	9
2	91
3	835
4	7765
5	72257
6	672627
7	6261827
8	58295677
9	542717361
10	5052561371
11	47038082435
12	437912812805
13	4076859114817
14	37954542163107
15	353347327405987
16	3289575547592237
17	30625128435267441
18	285112312553286091

[9,91,835,7765,72257,672627,6261827,58295677, 542717361,5052561371,47038082435,437912812805, 4076859114817,37954542163107,353347327405987, 3289575547592237,30625128435267441, 285112312553286091]