77760

Appears in sequences

• Convolution of A000203 with itself.at n=55A000385
• Theta series of 18-dimensional lattice associated with Sp_4(4), with det 1024 and minimal norm 4.at n=3A005944
• Theta series of 18-dimensional lattice associated with Sp_4(4), with det 256 and minimal norm 3.at n=6A005950
• Numbers of form 6^i*10^j with i, j >= 0.at n=21A025629
• Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*6^j.at n=25A038212
• Triangle read by rows: (i,j)-th entry is binomial(i,j)*3^(i-j)*8^j.at n=23A038226
• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*2^j.at n=23A038256
• Triangle read by rows: T(n,k) = binomial(n,k)*6^(n-k)*6^k, 0<=k<=n.at n=17A038260
• Triangle read by rows: T(n,k) = binomial(n,k)*6^(n-k)*6^k, 0<=k<=n.at n=18A038260
• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*12^j.at n=16A038266
• Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*3^j.at n=25A038281
• Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*6^j.at n=19A038332
• Numbers k such that, in the prime factorization of k, the product of exponents equals the product of prime factors.at n=16A054412
• a(n) = Product_{i=2..n} A001222(i) * Sum_{i=2..n} 1/A001222(i).at n=16A067580
• Order of the group GU(n,2), the general unitary n X n matrices over the finite field GF(4).at n=3A070953
• Euler's totient of n-th cyclic number.at n=0A087026
• Numbers of polypentagons with two connected internal vertices (see Cyvin et al. for precise definition).at n=16A122742
• a(1) = 1, a(2) = 2; then all new products of subsets of pre-existing terms which include the most recent, then the first integer not present and so on.at n=50A123664
• a(n) = (n^3-n)*6^n.at n=3A128964
• Numbers k such that k and k^2 use only the digits 0, 1, 4, 6 and 7.at n=15A136860