116640
domain: N
Appears in sequences
- Theta series of lattice A_2 tensor E_6 (dimension 12, det. 6561, min. norm 4).at n=7A033698
- Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*9^j.at n=24A038215
- Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*6^j.at n=24A038224
- Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*9^j.at n=18A038239
- Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*3^j.at n=24A038257
- Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*2^j.at n=24A038292
- Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*4^j.at n=17A038294
- Weights of rotation-symmetric functions in n variables.at n=15A051253
- Expansion of e.g.f. x*(1-x)/(1-3*x).at n=6A052700
- Numbers k such that, in the prime factorization of k, the product of exponents equals the product of prime factors.at n=19A054412
- Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) - m*k*(n-k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1 and m = 1, read by rows.at n=49A157152
- Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) - m*k*(n-k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1 and m = 1, read by rows.at n=50A157152
- Mirror of the triangle A193724.at n=47A193725
- Number of (n+2) X 3 binary arrays avoiding patterns 001 and 011 in rows and columns.at n=12A202093
- Number of 0..n arrays of length 5 with each element unequal to at least one neighbor, starting with 0.at n=17A221464
- Number of (n+1)X(2+1) 0..1 arrays with nondecreasing sum of every two consecutive values in every row and column.at n=13A250426
- Number of (2n-1) X 3 arrays containing 3 copies of 0..2n-2 with row sums equal.at n=2A268364
- T(n,k) = Number of n X k arrays containing k copies of 0..n-1 with row sums equal.at n=25A268367
- Numbers m such that sigma(Product(p_j)) = sigma(Product(e_j)), where m = Product((p_i)^e_i) and sigma = A000203.at n=22A272859
- Triangle read by rows: T(n,k) is the number of ternary words of length n having degree of asymmetry equal to k (n>=0; 0<=k<=n/2).at n=45A274498