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A149157 as a simple table

n a(n)
0 1
1 1
2 4
3 9
4 39
5 112
6 514
7 1664
8 7833
9 27346
10 130723
11 479977
12 2317526
13 8827710
14 42919942
15 168085941
16 821366455
17 3287613734
18 16126250115
19 65690433233
20 323170950475
21 1335621327595
22 6586014226736
23 27550903813319
24 136109790047564
25 575278188394020
26 2846407705761070
27 12137734111711302
28 60132476045010784

[1,1,4,9,39,112,514,1664,7833,27346,130723,479977,
 2317526,8827710,42919942,168085941,821366455,
 3287613734,16126250115,65690433233,323170950475,
 1335621327595,6586014226736,27550903813319,
 136109790047564,575278188394020,2846407705761070,
 12137734111711302,60132476045010784]

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Last modified August 22 16:13 EDT 2024. Contains 375369 sequences. (Running on oeis4.)