0,2

Dan Calistrate, Marc Paulhus and David Wolfe, On the lattice structure of finite games, in More Games of No Chance (Berkeley, CA, 2000), Math. Sci. Res. Inst. Publ., 42, Cambridge Univ. Press, Cambridge, 2002, pp. 25-30.

J. H. Conway, On Numbers and Games, Academic Press, NY, 1976.

Dean Hickerson (dean.hickerson(AT)yahoo.com) and Robert Li found a(3) in 1974.

Day 0: 0; day 1: 1 -1 *; day 2, 18: 2 -2 1/2 -1/2 1* -1* +/-1 up upstar down downstar *2 1|* 1|0 1|0,* *|-1 0|-1 0,*|-1.

Cf. A065401, A065407, A047995, A037142.

Sequence in context: A064846 A157544 A000853 this_sequence A131489 A069854 A157556

Adjacent sequences: A065399 A065400 A065401 this_sequence A065403 A065404 A065405

nonn,more

R. K. Guy (rkg(AT)cpsc.ucalgary.ca), Nov 23 2001