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A000420 as a simple table

n a(n)
0 1
1 7
2 49
3 343
4 2401
5 16807
6 117649
7 823543
8 5764801
9 40353607
10 282475249
11 1977326743
12 13841287201
13 96889010407
14 678223072849
15 4747561509943
16 33232930569601
17 232630513987207
18 1628413597910449
19 11398895185373143
20 79792266297612001
21 558545864083284007

[1,7,49,343,2401,16807,117649,823543,5764801,
 40353607,282475249,1977326743,13841287201,
 96889010407,678223072849,4747561509943,
 33232930569601,232630513987207,1628413597910449,
 11398895185373143,79792266297612001,
 558545864083284007]

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Last modified August 19 23:35 EDT 2017. Contains 290821 sequences.