A210240 Ramsey numbers R(3,n).

5, 8, 13, 17, 22

Offset

3,1

Comments

See Graver-Yackel for definition.

It is known that a(8) is in [26-29], a(9) is 35 or 36.

Differs by 1 from the list provided by A000791. - Ray G. Opao, Jun 24 2012

Links

Table of n, a(n) for n=3..7.

Jack E. Graver and James Yackel, Some graph theoretic results associated with Ramsey's theorem. J. Combinatorial Theory 4 1968 125--175. MR0225685 (37 #1278)

Eric W. Weisstein, MathWorld: Ramsey Number

Crossrefs

Sequence in context: A314426 A314427 A314428 * A314429 A314430 A314431

Adjacent sequences: A210237 A210238 A210239 * A210241 A210242 A210243

Keyword

nonn,hard,more

Author

N. J. A. Sloane, Mar 19 2012

Status

approved