24916

Appears in sequences

• Number of ways to cover (without overlapping) a ring lattice (necklace) of n sites with molecules that are 5 sites wide.at n=35A058368
• Fourth row of the Pascal-(1,4,1) array A081579.at n=11A081588
• Coefficient of x^2 in the polynomial (x-p(n))*(x-p(n+1))*(x-p(n+2))*(x-p(n+3)), where p(k) is the k-th prime.at n=16A127348
• a(n) = Pell(n) * Sum_{d|n} 1/Pell(d), where Pell(n) = A000129(n).at n=11A203797
• Number of length n binary words that contain at least one pair of consecutive 0's followed by (at some point in the word) at least one pair of consecutive 1's.at n=15A235996
• Array read by upwards antidiagonals: A(n, k) = index of prime(k)^n in A098550.at n=41A253609
• Numbers n such that triangular numbers T(n), T(n+1) and T(n+2) are 3-almost primes.at n=13A255200
• Number of maximal independent vertex sets (and minimal vertex covers) in the n-antiprism graph.at n=15A290593
• Number of permutations p of [n] such that |p(i) - p(i-1)| <= 2 and |p(i) - p(i-2)| <= 3.at n=28A333833