74304

Appears in sequences

• Theta series of direct sum of 4 copies of hexagonal lattice.at n=14A008655
• a(n) = 9*a(n-1) + 5*a(n-2).at n=6A015581
• a(n) = Sum{T(n,i): i=0,1,...,n}, where T is given by A048113.at n=20A048114
• (1/2)*Sum{T(n,i): i=0,1,...,n}, where T is given by A048113.at n=18A048115
• Number of 1-cell columns in all deco polyominoes of height n.at n=7A121555
• Partial sums of A001523.at n=22A174439
• Triangle read by rows: expansion of Sum_{k=0..n} binomial(n, k)*(Product_{j=0..n-k+1} (x + i)) * (-1)^k * x^(k-1).at n=23A174789
• Numbers with prime factorization pq^3r^6.at n=17A190467
• Numbers n with property that n and 2n are sums of two distinct positive cubes.at n=18A191345
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=27A208376
• Numbers n for which n*n'/(n+n') is an integer, where n' is the arithmetic derivative of n.at n=28A210935
• Total number of partitions of k*n into 3 parts for k = 1..n.at n=18A343124
• Number of partitions of the (n+10)-multiset {0,...,0,1,2,...,n} with ten 0's.at n=5A346856
• Number of partitions of the (n+5)-multiset {0,...,0,1,2,...,5} with n 0's.at n=10A346858
• Numbers k such that k and k+1 are both in A376616.at n=23A376793
• a(n) = sigma_1(n) * sigma_3(n).at n=13A379813