29278

Appears in sequences

• Number of Hamiltonian cycles in W_4 X P_n.at n=6A003765
• Number of 3-bead necklaces where each bead is an unlabeled rooted tree, by total number of nodes.at n=13A059221
• Numbers k such that A001414(k) is a square and sets a new record for squares.at n=33A064463
• a(n) is the smallest integer k such that the n-th (backward) difference of the partition sequence A000041 is positive from k onwards.at n=39A155861
• G.f. satisfies: A(x/A(x)^2) = C(x) where C(x) = 1 + x*C(x)^2 is the g.f. of the Catalan numbers (A000108).at n=6A168448
• Number of (n+1)X(2+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 12.at n=4A234108
• Number of (n+1)X(5+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 12.at n=1A234111
• T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 12.at n=16A234114
• T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 12.at n=19A234114
• Total sum T(n,k) of the sizes of all blocks with maximal element k in all set partitions of {1,2,...,n}; triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=42A270701
• Total sum T(n,k) of the sizes of all blocks with minimal element k in all set partitions of {1,2,...,n}; triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=38A270702
• Total sum of the sizes of all blocks with maximal element 7 in all set partitions of {1,2,...,n}.at n=2A270761
• Total sum of the sizes of all blocks with minimal element 3 in all set partitions of {1,2,...,n}.at n=6A270766