2,1

Number of endomorphisms of a path P_n.

M. A. Michels and U. Knauer, The congruence classes of paths and cycles, Discr. Math., 309 (2009), 5352-5359. See p. 5356.

Cf. A110971, A152086.

Sequence in context: A068786 A158920 A143123 this_sequence A102699 A156664 A025169

Adjacent sequences: A152086 A152087 A152088 this_sequence A152090 A152091 A152092

nonn,more

N. J. A. Sloane (njas(AT)research.att.com), Sep 20 2009