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A007630
A queens problem.
(Formerly M5288)
0
46, 92, 341, 1787, 9233, 45752, 285053, 1846955
OFFSET
4,1
REFERENCES
M. Gardner, Fractal Music, Hypercards and More, Freeman, NY, 1991, p. 240.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
FORMULA
a(n) = A002562(n+5). [Vaclav Kotesovec, Sep 07 2012]
CROSSREFS
Sequence in context: A234260 A211330 A121929 * A004923 A260568 A044184
KEYWORD
nonn
STATUS
approved