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A278768 as a simple table

n a(n)
0 1
1 1
2 6
3 18
4 55
5 150
6 424
7 1113
8 2923
9 7401
10 18510
11 45271
12 109297
13 259447
14 608428
15 1407958
16 3222132
17 7292198
18 16340830
19 36265672
20 79775931
21 173999194
22 376497975
23 808471181
24 1723592762
25 3649271887
26 7675809680
27 16043777217
28 33332888108
29 68853608216
30 141438908854
31 288994878713
32 587458691042

[1,1,6,18,55,150,424,1113,2923,7401,18510,45271,
 109297,259447,608428,1407958,3222132,7292198,
 16340830,36265672,79775931,173999194,376497975,
 808471181,1723592762,3649271887,7675809680,
 16043777217,33332888108,68853608216,141438908854,
 288994878713,587458691042]

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Last modified May 13 21:51 EDT 2024. Contains 372523 sequences. (Running on oeis4.)