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A183340 as a simple table

n a(n)
1 1
2 19
3 63
4 193
5 1005
6 4133
7 16029
8 68662
9 286079
10 1170324
11 4869491
12 20218182
13 83588667
14 346493199
15 1436419555
16 5949727953
17 24653341080
18 102162618558
19 423291469427
20 1753914307948
21 7267558737304
22 30113168208503
23 124774750283399

[1,19,63,193,1005,4133,16029,68662,286079,1170324,
 4869491,20218182,83588667,346493199,1436419555,
 5949727953,24653341080,102162618558,423291469427,
 1753914307948,7267558737304,30113168208503,
 124774750283399]

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Last modified October 27 22:39 EDT 2020. Contains 338043 sequences. (Running on oeis4.)