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A122948 as a simple table

n a(n)
0 1
1 -1
2 1
3 -1
4 1
5 0
6 4
7 10
8 33
9 93
10 264
11 729
12 1999
13 5437
14 14726
15 39757
16 107118
17 288201
18 774672
19 2080936
20 5587388
21 14997840
22 40249449
23 108001720
24 289774494
25 777430359
26 2085660586
27 5595162045
28 15009725921
29 40264911876
30 108013136968
31 289750079191
32 777264097335
33 2085030095791

[1,-1,1,-1,1,0,4,10,33,93,264,729,1999,5437,14726,
 39757,107118,288201,774672,2080936,5587388,
 14997840,40249449,108001720,289774494,777430359,
 2085660586,5595162045,15009725921,40264911876,
 108013136968,289750079191,777264097335,
 2085030095791]

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Last modified June 21 01:13 EDT 2024. Contains 373535 sequences. (Running on oeis4.)