18776

Appears in sequences

• Sums of 4 distinct powers of 5.at n=26A038476
• Index of first occurrence of n in A154404.at n=36A154952
• Number of (n+2) X 7 0..2 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..2 introduced in row major order.at n=7A204367
• Number of partitions of n such that (number parts having multiplicity 1) is a part and (number of 1s) is not a part.at n=42A241508
• Number of (2+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 3 5 6 or 7.at n=13A252386
• Number of (n+1)X(3+1) arrays of permutations of 0..n*4+3 with each element having index change (+-,+-) 0,0 0,1 0,2 or 1,0.at n=1A263813
• T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having index change (+-,+-) 0,0 0,1 0,2 or 1,0.at n=7A263816
• Number of (2+1) X (n+1) arrays of permutations of 0..n*3+2 with each element having index change (+-,+-) 0,0 0,1 0,2 or 1,0.at n=2A263818
• Partial sums of A267326.at n=18A264390
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 910", based on the 5-celled von Neumann neighborhood.at n=39A273764
• Number of (undirected) paths in the n-wheel graph.at n=16A291919
• Expansion of Product_{i>=2, j>=2} 1 / (1 - x^(i*j))^j.at n=32A326830
• G.f. A(x) = exp( Sum_{n>=1} (n^2 - A384819(n))*x^n/n ) where A384819(k) < k for k >= 1 such that A(x) is a power series with integral coefficients.at n=20A384820