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A141417 as a simple table

n a(n)
0 -1
1 1
2 1
3 1
4 19
5 27
6 863
7 1375
8 33953
9 57281
10 3250433
11 5675265
12 13695779093
13 24466579093
14 132282840127
15 240208245823
16 111956703448001
17 205804074290625
18 151711881512390095
19 281550972898020815
20 86560056264289860203
21 161867055619224199787
22 20953816286242674495191
23 39427936010479474495191

[-1,1,1,1,19,27,863,1375,33953,57281,3250433,
 5675265,13695779093,24466579093,132282840127,
 240208245823,111956703448001,205804074290625,
 151711881512390095,281550972898020815,
 86560056264289860203,161867055619224199787,
 20953816286242674495191,39427936010479474495191]

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Last modified May 6 18:59 EDT 2024. Contains 372297 sequences. (Running on oeis4.)