A187585 Number of Steiner Systems S(2,4,n) with nontrivial automorphism group.
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 4466, 0, 0, 0, 0, 0, 0, 0, 0
Offset: 1
Links
- Colin Reid and Alex Rosa, Steiner systems S(2,4,v) - a survey, Electronic Journal of Combinatorics, Dynamic Survey DS18, Feb 01 2010.
- E. Spence, The complete classification of Steiner Systems S(2,4,25), J. Combin. Designs, 4 (1996), 295-300.
- Index entries for sequences related to Steiner systems
Crossrefs
Cf. A187567.
Comments