19033

Appears in sequences

• Expansion of 1/((1-x)*(1-6*x)*(1-9*x)).at n=4A016244
• One fifth of the sum of the first n primes, when an integer.at n=30A112271
• Partial sums of A005587. Fourth column of triangle A115127.at n=13A115129
• Position of cubes in the EKG sequence (A064413).at n=26A140418
• Number of (n+1)X(1+1) 0..2 arrays x(i,j) with row sums sum{j^3*x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^3*x(i,j), i=1..n+1} nondecreasing.at n=7A232784
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays x(i,j) with row sums sum{j^3*x(i,j), j=1..k+1} nondecreasing, and column sums sum{i^3*x(i,j), i=1..n+1} nondecreasing.at n=28A232787
• Number of length 1+3 0..n arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=23A248538
• a(n) = n^3 + 2*n^2 + 4*n + 1.at n=26A270867
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n) + n, where a(0) = 1, a(1) = 2, b(0) = 3, b(1) = 4, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences.at n=16A296555
• Number of ways to write n as an ordered sum of 7 primes (counting 1 as a prime).at n=22A341986