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A284737 A condensed version of A108235. 0
1, 1, 8, 21, 3040, 20505, 10567748, 103372655 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Lists only the terms A108235(n) for n == 0 or 3 mod 12.
See A108235, the main entry for this sequence, for more information.
LINKS
R. J. Nowakowski, Generalizations of the Langford-Skolem problem, M.S. Thesis, Dept. Math., Univ. Calgary, May 1975. [Scanned copy, with permission.]
Ana Rechtman, Août 2018, 3e défi, Images des Mathématiques, CNRS, 2018 (in French).
CROSSREFS
Cf. A108235.
Sequence in context: A141369 A060390 A019281 * A323593 A013630 A215600
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Apr 09 2017
STATUS
approved

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Last modified July 12 17:45 EDT 2024. Contains 374251 sequences. (Running on oeis4.)