1,2
M. Baake and R. V. Moody, Similarity submodules and root systems in four dimensions, Canad. J. Math. (1999), 51 1258-1276.
Cf. A035284.
Sequence in context: A111036 A055709 A037204 * A069824 A015709 A020195
Adjacent sequences: A035282 A035283 A035284 * A035286 A035287 A035288
easy,nonn,more
N. J. A. Sloane (njas(AT)research.att.com).