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A281695 as a simple table

n a(n)
1 0
2 15
3 847
4 14575
5 172398
6 1900616
7 17698286
8 154129813
9 1275251254
10 10132993005
11 78117611504
12 587910877987
13 4338607753232
14 31501834570803
15 225621916093246
16 1597186816890237
17 11193139375201572
18 77755257717795413
19 535979713724257216

[0,15,847,14575,172398,1900616,17698286,154129813,
 1275251254,10132993005,78117611504,587910877987,
 4338607753232,31501834570803,225621916093246,
 1597186816890237,11193139375201572,
 77755257717795413,535979713724257216]

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Last modified October 27 09:08 EDT 2020. Contains 338035 sequences. (Running on oeis4.)