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A006474 Related to Ramsey numbers.
(Formerly M1167)
0
1, 2, 4, 9, 16, 20, 30, 42, 49, 64 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

W. D. Goddard and Henda C. Swart, On some extremal problems in connectivity, pp. 535-551 of Y. Alavi et al., eds., Graph Theory, Combinatorics and Applications. Wiley, NY, 2 vols., 1991.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=1..10.

CROSSREFS

Sequence in context: A014290 A015730 A073858 * A110878 A253849 A077137

Adjacent sequences:  A006471 A006472 A006473 * A006475 A006476 A006477

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 16 03:57 EDT 2018. Contains 316259 sequences. (Running on oeis4.)