|
|
A004077
|
|
Number of extended Skolem sequences of order n.
|
|
1
|
|
|
2, 2, 6, 22, 48, 160, 636, 3556, 19488, 95872, 594320, 4459888, 32131648, 227072544, 1875064880, 17851780784, 165367171136, 1506506453568, 15540217445728, 179708231523680, 2034547787823488, 22716589497430656
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
REFERENCES
|
CRC Handbook of Combinatorial Designs, 1996, p. 460.
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,more
|
|
AUTHOR
|
|
|
EXTENSIONS
|
a(15)-a(18) from Jeppe Winther Larsen (jwl(AT)itu.dk), Oct 12 2009
|
|
STATUS
|
approved
|
|
|
|