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A259451 as a simple table

n a(n)
0 0
1 1
2 4
3 18
4 48
5 125
6 288
7 637
8 1344
9 2754
10 5500
11 10769
12 20736
13 39377
14 73892
15 137250
16 252672
17 461533
18 837216
19 1509341
20 2706000
21 4827186
22 8572124
23 15159553
24 26707968
25 46890625
26 82061668
27 143188722
28 249163824
29 432466589
30 748836000
31 1293764509
32 2230588416
33 3838265442
34 6592537372
35 11303644625
36 19349736192

[0,1,4,18,48,125,288,637,1344,2754,5500,10769,
 20736,39377,73892,137250,252672,461533,837216,
 1509341,2706000,4827186,8572124,15159553,26707968,
 46890625,82061668,143188722,249163824,432466589,
 748836000,1293764509,2230588416,3838265442,
 6592537372,11303644625,19349736192]

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Last modified June 8 03:56 EDT 2024. Contains 373207 sequences. (Running on oeis4.)