STATUS
editing
approved
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Revision History for A190836
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Number of permutations of 7 copies of 1..n introduced in order 1..n with no element equal to another within a distance of 1.
(history; published version)
(history; published version)
FORMULA
a(n) ~ sqrt(7) * 117649^n * n^(6*n) / (720^n * exp(6*n + 6)). - Vaclav Kotesovec, Nov 24 2018
STATUS
approved
editing
LINKS
Seiichi Manyama, <a href="/A190836/b190836_1.txt">Table of n, a(n) for n = 0..88</a> (terms 1..11 from R. J. Mathar)
STATUS
proposed
approved
STATUS
editing
proposed
LINKS
Seiichi Manyama, <a href="/A190836/b190836_1.txt">Table of n, a(n) for n = 0..88</a> (terms 1..11 from R. J. Mathar)
LINKS
R. J. Mathar, Seiichi Manyama, <a href="/A190836/b190836_1.txt">Table of n, a(n) for n = 10..1188</a>
DATA
1, 0, 1, 56620, 22875971289, 36533294879349056, 183095824753841610373405, 2421032324142610480402567434373, 74115215422015289392187745053216373265, 4749303210651587675797285013227098386984170468, 588242979144354234332728292738493758656488275002948671
EXTENSIONS
a(0)=1 prepended by Seiichi Manyama, Nov 16 2018
NAME
Number of permutations of 7 copies of 1..n introduced in order 1..n with no element equal to another within a distance of 1.
DATA
1, 0, 1, 56620, 22875971289, 36533294879349056, 183095824753841610373405
OFFSET
1,3
0,4
STATUS
approved
editing