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A103326 as a simple table

n a(n)
1 5
2 55
3 305
4 2255
5 15005
6 104005
7 709805
8 4873055
9 33379505
10 228841255
11 1568358005
12 10750060805
13 73681030805
14 505019869255
15 3461450947505
16 23725155368255
17 162614587921805
18 1114577087604805
19 7639424691459005
20 52361396626646255
21 358890349406803505

[5,55,305,2255,15005,104005,709805,4873055,
 33379505,228841255,1568358005,10750060805,
 73681030805,505019869255,3461450947505,
 23725155368255,162614587921805,1114577087604805,
 7639424691459005,52361396626646255,
 358890349406803505]

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)