A084507 First occurrence of n in A084501.
63, 17, 5, 1, 4, 18, 96, 510, 2580, 12522, 58920, 270870, 1223292
Offset: 0
Links
- Antti Karttunen, Scheme-program for computing this sequence
This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
The successive site swaps are: 3; 4,2; 4,4,1; 5,2,2; 5,3,1; 4,4,4,0; 4,5,1,2; 4,5,3,0; ... See A084512.
A084509 := n -> `if`((n<4),n!,6*(4^(n-3))); INVERT([seq(A084519(n),n=1..12)]);
LinearRecurrence[{4},{1,2,6},30] (* Harvey P. Dale, Aug 23 2018 *)
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