For each integer \(v \geq 0\) and each \(\lambda \in \{4, 5, 7, 8\}\), the possible numbers of distinct blocks in a triple system of order \(v\) and index \(\lambda\) is determined. This essentially completes the determination of possible support sizes for triple systems with \(\lambda \leq 8\).
Citation
C. J. Colbourn, S. Milici. Support Sizes of Triple Systems with Small Index[J], Journal of Combinatorial Mathematics and Combinatorial Computing, Volume 006. 155-161. .