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A232872 Number of (n+1)X(2+1) 0..1 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing 1

%I #4 Dec 01 2013 17:18:27

%S 14,45,130,311,637,1235,2314,4200,7228,11846,18788,29081,44132,65107,

%T 93928,132887,185250,254624,345006,461565,610287,798949,1035882,

%U 1330097,1692861,2137519,2679053,3333526,4120225,5060874,6180451,7506470,9070729

%N Number of (n+1)X(2+1) 0..1 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing

%C Column 2 of A232877

%H R. H. Hardin, <a href="/A232872/b232872.txt">Table of n, a(n) for n = 1..111</a>

%e Some solutions for n=5

%e ..0..0..0....0..0..0....1..0..0....0..0..0....1..0..0....0..0..0....0..0..0

%e ..1..0..0....0..1..0....1..0..0....0..0..0....1..0..0....1..0..0....0..0..0

%e ..1..0..0....0..1..0....0..1..0....0..0..0....1..0..1....0..1..0....0..0..0

%e ..0..1..1....0..1..0....0..0..1....0..0..0....1..0..1....0..1..0....0..0..1

%e ..0..1..1....0..0..1....0..0..1....0..0..0....0..1..1....1..0..1....0..0..1

%e ..0..1..1....0..0..1....0..0..1....0..0..1....0..1..1....0..1..1....0..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 01 2013

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)