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A049031 as a simple table

n a(n)
1 0
2 0
3 2
4 8
5 20
6 40
7 80
8 140
9 224
10 336
11 504
12 720
13 990
14 1320
15 1760
16 2288
17 2912
18 3640
19 4550
20 5600
21 6800
22 8160
23 9792
24 11628
25 13680
26 15960
27 18620
28 21560
29 24794
30 28336
31 32384
32 36800
33 41600
34 46800
35 52650
36 58968
37 65772
38 73080
39 81200
40 89900

[0,0,2,8,20,40,80,140,224,336,504,720,990,1320,
 1760,2288,2912,3640,4550,5600,6800,8160,9792,
 11628,13680,15960,18620,21560,24794,28336,32384,
 36800,41600,46800,52650,58968,65772,73080,81200,
 89900]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)