OFFSET
0,7
REFERENCES
G. Mantel, Resten van wederkeerige Reeksen, Nieuw Archief v. Wiskunde, 2nd series, I (1894), 172-184. [From N. J. A. Sloane, Dec 17 2010]
CROSSREFS
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Dec 19 2010
STATUS
approved