0,4
B. H. Gross, Groups over Z, Invent. Math., vol. 124, pp. 263-279 1996.
Sequence in context: A206221 A028518 A206748 * A179583 A156409 A186613
Adjacent sequences: A018231 A018232 A018233 * A018235 A018236 A018237
nonn,more
N. J. A. Sloane (njas(AT)research.att.com).