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A204474 as a simple table

n a(n)
0 0
1 1
2 5448
3 517971
4 10388788
5 97809616
6 587267282
7 2615047418
8 9408671330
9 28851490163
10 78132541528
11 191563698893
12 432971108530
13 914435915008
14 1823570327812
15 3461969170632
16 6297974185728
17 11037428544793
18 18716682230144
19 30822735206253
20 49446074607790

[0,1,5448,517971,10388788,97809616,587267282,
 2615047418,9408671330,28851490163,78132541528,
 191563698893,432971108530,914435915008,
 1823570327812,3461969170632,6297974185728,
 11037428544793,18716682230144,30822735206253,
 49446074607790]

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Last modified January 22 23:09 EST 2021. Contains 340383 sequences. (Running on oeis4.)