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A219378 as a simple table

n a(n)
1 15
2 40
3 957
4 11861
5 143187
6 1487707
7 14318103
8 131239201
9 1147488045
10 9517630246
11 74931455708
12 562422372140
13 4043149398971
14 27937616085693
15 186079023377334
16 1197588585613244
17 7464080624353740
18 45138765582109503
19 265315844054012169

[15,40,957,11861,143187,1487707,14318103,
 131239201,1147488045,9517630246,74931455708,
 562422372140,4043149398971,27937616085693,
 186079023377334,1197588585613244,7464080624353740,
 45138765582109503,265315844054012169]

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Last modified April 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)