A331138 Triangle read by rows: T(n,k) (n>=3, k>=1) = length of shortest code realizing a synch-set S(n,k).

4, 7, 5, 12, 7, 6, 18, 10, 8, 7, 26, 14, 11, 9, 8, 35, 19, 14, 11, 10, 9, 45

Offset: 3

Author

N. J. A. Sloane, Jan 12 2020

Keywords

• nonn
• tabl
• more

Examples

			Triangle begins:
   4;
   7,  5;
  12,  7,  6;
  18, 10,  8,  7;
  26, 14, 11,  9,  8;
  35, 19, 14, 11, 10,  9;
  45, ...
  ...
		

References

• Simmons, G. J., Synch sets: A variant of difference sets. Report No. SLA-74-5068; CONF-740217-1. Sandia Labs., Albuquerque, N. Mex.(USA), 1974. Also in Proceedings of the Fifth Southeastern Conference on Combinatorics, Graph Theory and Computing (Florida Atlantic Univ., Boca Raton, Fla., 1974), pp. 625-645. Congressus Numerantium, No. X, Utilitas Math., Winnipeg, Man., 1974. MR0357160 (50 #9628)

Crossrefs

The first column appears to be A227590.