

A202954


Number of partitions of [1,...,3n] into triples satisfying x+y=4z.


2



1, 0, 0, 0, 0, 0, 0, 0, 6, 0, 5, 0, 0, 349, 0, 443, 0, 0, 110757, 0, 1254452, 0, 0, 152965479, 0
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OFFSET

0,9


COMMENTS

a(n)=0 when n is not congruent to 0 or 3 mod 5.  Edward Moody, Jan 17 2021


LINKS

Table of n, a(n) for n=0..24.
R. J. Nowakowski, Generalizations of the LangfordSkolem problem, M.S. Thesis, Dept. Math., Univ. Calgary, May 1975. [Scanned copy, with permission.] See Table II.6.


CROSSREFS

Cf. A108235, A104429.
Sequence in context: A112280 A204850 A202394 * A218850 A021627 A257580
Adjacent sequences: A202951 A202952 A202953 * A202955 A202956 A202957


KEYWORD

nonn,more


AUTHOR

N. J. A. Sloane, Dec 26 2011


EXTENSIONS

a(14)a(17) from Alois P. Heinz, Dec 28 2011
a(18) from Alois P. Heinz, Jan 04 2012
a(19)a(24) from Edward Moody, Jan 17 2021


STATUS

approved



