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A030837 as a simple table

n a(n)
1 2
2 5
3 15
4 62
5 312
6 1877
7 13141
8 105128
9 946154
10 9461541
11 104076959
12 1248923514
13 16236005691
14 227304079677
15 3409561195165
16 54552979122653
17 927400645085116
18 16693211611532101
19 317171020619109926
20 6343420412382198537

[2,5,15,62,312,1877,13141,105128,946154,9461541,
 104076959,1248923514,16236005691,227304079677,
 3409561195165,54552979122653,927400645085116,
 16693211611532101,317171020619109926,
 6343420412382198537]

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Last modified September 17 22:44 EDT 2024. Contains 375991 sequences. (Running on oeis4.)