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A015071 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 137225
5 7231840
6 511741475
7 20997046400
8 642104180575
9 14620696059200
10 255580729090995
11 3496191224323200
12 38040223036760175
13 333583215539666400
14 2383620193904285325
15 14005823013894187520
16 68193674589734420650
17 276907649362395385600
18 942804613467381809925
19 2703690046024936460800
20 6554715226694274576090
21 13474850114631510264000
22 23545377636355278743550
23 35033701987289528723200
24 44444350658167367673150
25 48108742023087188141952

[1,0,0,0,137225,7231840,511741475,20997046400,
 642104180575,14620696059200,255580729090995,
 3496191224323200,38040223036760175,
 333583215539666400,2383620193904285325,
 14005823013894187520,68193674589734420650,
 276907649362395385600,942804613467381809925,
 2703690046024936460800,6554715226694274576090,
 13474850114631510264000,23545377636355278743550,
 35033701987289528723200,44444350658167367673150,
 48108742023087188141952]

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Last modified September 9 03:44 EDT 2024. Contains 375759 sequences. (Running on oeis4.)