28240

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 21.at n=7A031699
• A convolution triangle of numbers generalizing Pascal's triangle A007318.at n=40A049325
• a(n) = Sum_{i=0..floor(n/2)} T(2i,n-2i), array T as in A049723.at n=37A049726
• Ooguri-Vafa invariants of disk domain wall degeneracies for brane I in the O(K) -> P^1 X P^1 geometry.at n=2A061622
• a(n) is the number of n-tosses having a run of 6 or more heads for a fair coin (i.e., probability is a(n)/2^n).at n=18A143662
• a(n) = 64*n^2 + 16.at n=20A157912
• a(n) = 441n^2 + 2n.at n=7A158321
• Number of length n+4 0..3 arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two.at n=3A248996
• T(n,k)=Number of length n+4 0..k arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two.at n=18A249001
• Number of length 4+4 0..n arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two.at n=2A249005
• Numbers k such that Bernoulli number B_{k} has denominator 230010.at n=9A295593
• a(n) = n*(2*n - 3 - (-1)^n)*(11*n + (-1)^n)/24.at n=31A308026