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A249996 as a simple table

n a(n)
0 1
1 -1
2 15
3 -5
4 191
5 99
6 2455
7 3515
8 33231
9 74899
10 474695
11 1371435
12 7071871
13 23520899
14 108399735
15 390617755
16 1691480111
17 6378762099
18 26676785575
19 103221406475
20 423343881951
21 1661998662499
22 6742129440215
23 26686105001595
24 107591675061391
25 427824901526099
26 1718925069371655

[1,-1,15,-5,191,99,2455,3515,33231,74899,474695,
 1371435,7071871,23520899,108399735,390617755,
 1691480111,6378762099,26676785575,103221406475,
 423343881951,1661998662499,6742129440215,
 26686105001595,107591675061391,427824901526099,
 1718925069371655]

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Last modified April 19 15:11 EDT 2024. Contains 371794 sequences. (Running on oeis4.)