i wonder if there's any chance that oeis doesn't mention this.
1 --> 0
2 --> 0
3 --> 0
4 --> 8 ? (probably more)
N --> f(N)
the Number of Permutations of (1, 2, ..., N)
in which No adjacent Numbers are diff. by 1.
A good Jumble-generator prob. does this... (== separate original neighbors).
On Saturday, November 5, 2022 at 9:58:21 PM UTC-4, henh...@gmail.com wrote:
i wonder if there's any chance that oeis doesn't mention this.
1 --> 0
2 --> 0
3 --> 0
4 --> 8 ? (probably more)
N --> f(N)
the Number of Permutations of (1, 2, ..., N)
in which No adjacent Numbers are diff. by 1.
A good Jumble-generator prob. does this... (== separate original neighbors).
https://oeis.org/A002464
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