97155

Appears in sequences

• Gaussian binomial coefficient [n, 3] for q = 2.at n=5A006096
• Gaussian binomial coefficient [n, 5] for q = 2.at n=3A006110
• Triangle of Gaussian binomial coefficients (or q-binomial coefficients) [n,k] for q = 2.at n=39A022166
• Triangle of Gaussian binomial coefficients (or q-binomial coefficients) [n,k] for q = 2.at n=41A022166
• Number of sublattices of index n in generic 4-dimensional lattice.at n=31A038991
• Number of sublattices of index n in generic 6-dimensional lattice.at n=7A038993
• a(n) = Z(S_m; sigma[1](n), sigma[2](n),..., sigma[m](n)) where Z(S_m; x_1,x_2,...,x_m) is the cycle index of the symmetric group S_m and sigma[k](n) is the sum of k-th powers of divisors of n; m=3.at n=31A068020
• Z(S_m; sigma[1](n), sigma[2](n),..., sigma[m](n)) where Z(S_m; x_1,x_2,...,x_m) is the cycle index of the symmetric group S_m and sigma[k](n) is the sum of k-th powers of divisors of n; m=5.at n=7A068022
• Numbers k such that the digits of k^3, reversed, include the digits of k as substring.at n=26A115762
• General q-Narayana triangle sequence: T(n, k) = Product_{j=0..2} ( q_binomial(n+j, j+k, 2)/q_binomial(n+j-k, j, 2) ).at n=22A156939
• General q-Narayana triangle sequence: T(n, k) = Product_{j=0..2} ( q_binomial(n+j, j+k, 2)/q_binomial(n+j-k, j, 2) ).at n=26A156939
• a(n) = floor((A002110(n) * A054272(n)) / A001248(n)).at n=6A249747
• Odd numbers that are not of the form p + 2^a + 2^b with b > a > 0, and p prime.at n=13A268693
• Number T(n,k) of set partitions of [n] such that at least one of the block sizes is k or k=0; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=57A327884
• Number of set partitions of [n] such that at least one of the block sizes is 2.at n=10A327885
• Numbers k such that sigma(k) = psi(k) + tau(k)^3.at n=30A390297