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A019996 as a simple table

n a(n)
0 2
1 24
2 39
3 104
4 388
5 578
6 669
7 2746
8 2819
9 3013
10 5169
11 17398
12 19094
13 21359
14 23116
15 24950
16 48267
17 48487
18 105621
19 215513
20 4706574
21 16400064
22 106043719
23 137338247
24 243888200
25 478287113
26 673135223
27 3077440133
28 6453969104

[2,24,39,104,388,578,669,2746,2819,3013,5169,
 17398,19094,21359,23116,24950,48267,48487,105621,
 215513,4706574,16400064,106043719,137338247,
 243888200,478287113,673135223,3077440133,
 6453969104]

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Last modified April 23 12:44 EDT 2024. Contains 371913 sequences. (Running on oeis4.)