72220

Appears in sequences

• Trace sequence of a path graph plus loop.at n=19A096975
• Numbers k such that k+1, k+3, k+7 and k+9 are all primes.at n=30A125855
• G.f. satisfies: A(x) = A(x^2)^2 + x*A(x)^2.at n=10A182144
• Number of -6..6 arrays x(0..n-1) of n elements with sum zero and with zeroth through n-1st differences all nonzero.at n=5A200036
• T(n,k)=Number of -k..k arrays x(0..n-1) of n elements with sum zero and with zeroth through n-1st differences all nonzero.at n=60A200038
• Number of -n..n arrays x(0..5) of 6 elements with sum zero and with zeroth through 5th differences all nonzero.at n=5A200042