A007007 Valence of graph of maximal intersecting families of sets.
0, 1, 3, 4, 10, 15, 35, 56, 126, 210, 462, 792, 1716, 3003, 6435, 11440, 24310, 43758, 92378, 167960, 352716, 646646, 1352078, 2496144, 5200300, 9657700, 20058300, 37442160, 77558760, 145422675, 300540195, 565722720, 1166803110, 2203961430
Offset: 1
References
- N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Links
- Jan C. Bioch and Toshihide Ibaraki, Generating and approximating nondominated coteries, IEEE Transactions on parallel and distributed systems 6 (1995), 905-914.
- D. E. Loeb and A. Meyerowitz, The maximal intersecting family of sets graph, in H. Barcelo and G. Kalai, editors, Proceedings of the Conference on Jerusalem Combinatorics 1993. AMS series Contemporary Mathematics, 1994.
- A. Meyerowitz, Maximal intersecting families, European J. Combin. 16 (1995), no. 5, 491-501.
Formula
Equals A037952 except for n=1 [Loeb & Meyerowitz, theorem 16]. - Andrey Zabolotskiy, Sep 19 2017
Extensions
More terms from Andrey Zabolotskiy, Sep 19 2017