2,2

a(5) is also the number of paths in the 2-Keller graph.

Table of n, a(n) for n=2..5.

Eric Weisstein's World of Mathematics, Folded Cube Graph

Eric Weisstein's World of Mathematics, Graph Path

Eric Weisstein's World of Mathematics, Keller Graph

Sequence in context: A295446 A056093 A056070 * A054647 A061162 A230272

Adjacent sequences: A301374 A301375 A301376 * A301378 A301379 A301380

nonn,more

Eric W. Weisstein, Mar 21 2018

approved