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A038111 as a simple table

n a(n)
1 2
2 6
3 15
4 105
5 385
6 1001
7 17017
8 323323
9 7436429
10 19605131
11 86822723
12 3212440751
13 131710070791
14 5663533044013
15 266186053068611
16 613385252723321
17 2783825377744303
18 5855632691117327
19 392327390304860909
20 27855244711645124539
21 2033432863950094091347
22 160641196252057433216413

[2,6,15,105,385,1001,17017,323323,7436429,
 19605131,86822723,3212440751,131710070791,
 5663533044013,266186053068611,613385252723321,
 2783825377744303,5855632691117327,
 392327390304860909,27855244711645124539,
 2033432863950094091347,160641196252057433216413]

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Last modified November 15 21:34 EST 2019. Contains 329158 sequences. (Running on oeis4.)