cp's OEIS Frontend

A212873 Number of nondecreasing sequences of 6 1..n integers with no element dividing the sequence sum.

%I A212873 #6 Jul 22 2025 22:59:07
%S A212873 0,0,2,9,32,82,199,407,796,1424,2407,3948,6166,9456,14171,20556,29007,
%T A212873 40714,55528,75323,100720,132454,171336,221156,281727,355410,445061,
%U A212873 553660,680365,835511,1013730,1226556,1475591,1764220,2101833,2493659
%N A212873 Number of nondecreasing sequences of 6 1..n integers with no element dividing the sequence sum.
%C A212873 Row 6 of A212868
%H A212873 R. H. Hardin, <a href="/A212873/b212873.txt">Table of n, a(n) for n = 1..210</a>
%e A212873 Some solutions for n=8
%e A212873 ..3....4....4....2....2....4....3....2....2....4....4....3....2....2....3....5
%e A212873 ..3....4....6....2....2....6....3....3....4....4....4....4....2....3....4....5
%e A212873 ..4....6....6....2....4....7....6....5....5....4....4....4....5....4....5....5
%e A212873 ..4....7....6....3....5....8....6....5....6....4....4....6....6....6....5....5
%e A212873 ..4....8....6....8....6....8....8....8....7....4....5....6....6....7....6....6
%e A212873 ..5....8....6....8....8....8....8....8....7....6....8....6....8....7....6....7
%K A212873 nonn
%O A212873 1,3
%A A212873 _R. H. Hardin_ May 29 2012