A202951 Number of Nickerson-type partitions of [1,...,3n] into triples satisfying x+y=z.

1, 1, 0, 0, 6, 10, 0, 0, 700

Offset: 0

Author

N. J. A. Sloane, Dec 26 2011

Keywords

• nonn
• more

Comments

Perhaps an incorrect version of A004075? Sequence values are from p. 51 of Nowakowski. - Martin Fuller, Jul 06 2025

Links

• R. S. Nickerson, Problem E1845, Amer. Math. Monthly, p. 81, 73 (1966).
• R. S. Nickerson and D. C. B. Marsh, E1845: A variant of Langford's Problem, American Math. Monthly, 1967, 74, 591-595.
• R. J. Nowakowski, Generalizations of the Langford-Skolem problem, M.S. Thesis, Dept. Math., Univ. Calgary, May 1975. [Scanned copy, with permission.]

Crossrefs

Cf. A108235, A202952.