%I #9 Oct 19 2023 08:48:11
%S 0,0,4,16,60,208,726,2568,9196,33286,121572,447392,1657006,6170928,
%T 23091220,86767014,327235608,1238188768,4698767638
%N Sets with a congruence property.
%H Alexander Rosa and Štefan Znám, <a href="/A002703/a002703.pdf">A combinatorial problem in the theory of congruences (Russian with English summary)</a>, Mat.-Fys. Casopis Sloven. Akad. Vied 15 1965 49-59. [Annotated scanned copy.]
%H Alexander Rosa and Štefan Znám, <a href="/A002703/a002703_1.pdf">A remark on a combinatorial problem (Russian with English summary)</a>, Mat.-Fyz. Casopis Sloven. Akad. Vied 15 1965 313-316. [Annotated scanned copy] See Table 1.
%F See Maple code in A002705.
%K nonn
%O 3,3
%A _R. J. Mathar_, Oct 21 2015
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