26852

Appears in sequences

• Numbers n for which there are exactly twelve k such that n = k + reverse(k).at n=25A072435
• Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..1 2 X n array.at n=10A218065
• Number of (n+1)X(1+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.at n=2A235749
• Number of (n+1)X(3+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.at n=0A235751
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.at n=3A235752
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.at n=5A235752
• Number of (n+1)X(3+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise.at n=0A235814
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise.at n=3A235815
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise.at n=5A235815
• Least positive integer k such that prime(prime(k)), prime(prime(k*n)), prime(p) and prime(q) form a 4-term arithmetic progression for some pair of primes p and q.at n=49A261462
• Numbers m such that the sum of the first m primes as well as the sum of the squares and the sum of the cubes of the first m primes are all prime.at n=7A329539
• Number of planar vertically indecomposable distributive lattices with n nodes.at n=29A345734
• E.g.f. satisfies A(x) = 1/(1 + 2*log(1 - x*A(x)^2)).at n=4A371297
• G.f.: Sum_{k>=0} x^(k*(k+1)) * Product_{j=1..k} ((1 + x^j)/(1 - x^j))^2.at n=28A376852
• a(n) = 4*(23 - 17*n + 8*n^2).at n=29A387458