33292

Appears in sequences

• 11-gonal (or hendecagonal) pyramidal numbers: a(n) = n*(n+1)*(3*n-2)/2.at n=28A007586
• Position of 5^n among the powers of primes (A000961).at n=8A025471
• Numbers whose base-8 representation has exactly 6 runs.at n=3A043628
• Number of permutations of 1..n with no three elements in correct or reverse order.at n=8A095816
• Numbers k such that 4^k*(2^k - 1) + 1 is a prime.at n=8A098856
• Number of lattice paths from (0,0) to (n,n) using steps (0,1), (0,2), (1,0), (2,2).at n=7A191684
• Positions of prime powers p^e with p < e within A000961.at n=26A192187
• Even dodecagonal numbers: a(n) = 4*n*(5*n - 2).at n=41A193872
• Number of (n+1) X (3+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)-x(i-1,j) in the j direction.at n=9A250606
• a(n) = Sum_{i=1..n, j=1..n, gcd(i,j)=1} i.at n=46A333297
• Triangle read by rows: T(n,k) is the number of permutations of k elements from [1..n] with longest consecutive chain size less than 3.at n=44A340106