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A056409 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 1
6 9
7 26
8 299
9 1183
10 10700
11 24736
12 349232
13 626053
14 6680953
15 26364609
16 137246955
17 353304459
18 4826416835
19 8199440662
20 93679518802
21 315943737305
22 1913783049725
23 4382586624256
24 60629067426943

[0,0,0,0,1,9,26,299,1183,10700,24736,349232,
 626053,6680953,26364609,137246955,353304459,
 4826416835,8199440662,93679518802,315943737305,
 1913783049725,4382586624256,60629067426943]

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)