30848

Appears in sequences

• Expansion of q^(-1/4) * (eta(q^4) / eta(q))^2 in powers of q.at n=23A001936
• Number of nonaveraging subsets on {1,2,...,n}.at n=21A051013
• f-perfect numbers, where f(m) = m - 1.at n=5A066230
• a(0)=1, a(2n) = 2a(2n-1)+a(n), a(2n+1) = 2a(2n)+2a(n).at n=12A084566
• Numbers whose abundance is 14.at n=2A141546
• Number of (directed) Hamiltonian cycles on a 3 X (2n) knight's tour graph.at n=7A158074
• Denominators a(n) of Pythagorean approximations b(n)/a(n) to 7/4.at n=5A195568
• Number of 4-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero and avoiding the patterns z z+1 z+2 and z z-1 z-2.at n=27A209116
• Numbers of the form (24*x + 1)*2^(y+6) with positive integers x and y.at n=16A231203
• T(n,k)=Number of length n+6 0..k arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=10A249359
• T(n,k)=Number of length n+6 0..k arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=16A249359
• T(n,k)=Number of length n+6 0..k arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=23A249359
• T(n,k)=Number of length n+6 0..k arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=31A249359
• T(n,k)=Number of length n+6 0..k arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=40A249359
• Number of length 1+6 0..n arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=4A249360
• Number of length 2+6 0..n arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=4A249361
• Number of length 3+6 0..n arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=4A249362
• Number of length 4+6 0..n arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=4A249363
• Number of length 5+6 0..n arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=4A249364
• Number of length 6+6 0..n arrays with every seven consecutive terms having six times some element equal to the sum of the remaining six.at n=4A249365