32424
domain: N
Appears in sequences
- Number of tree-rooted toroidal maps with 2 faces and n vertices and without separating loops or isthmuses.at n=4A006434
- Convolution of A023532 and Fibonacci numbers.at n=21A023596
- Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 15.at n=11A031693
- Numbers k such that 37*2^k+1 is prime.at n=35A032368
- 3-wave sequence beginning with 2's.at n=25A060827
- Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A071661.at n=14A079437
- Triangle T, read by rows, equal to the matrix inverse of the triangle defined by [T^-1](n,k) = A075263(n,k)/n!, for n>=k>=0.at n=25A106338
- Primitive elements of A065607.at n=18A120692
- Elements of A065607 from primitive triples.at n=29A120693
- Values of n such that n^a-+a are primes, a=5.at n=33A155021
- a(n) = 1728*n - 408.at n=18A157266
- a(n) = 225n^2 + 2n.at n=11A158228
- Least positive number k such that k*p+1 divides 2^p+1 where p is prime(n), or 0 if no such number exists.at n=33A185343
- a(n,k) is the count of permutations with cycle length k in the products w*w over all permutations w of length n.at n=42A191718
- Number of 3 X 3 0..n symmetric arrays with all rows summing to floor(n*3/2).at n=40A213801
- Records in A224796.at n=46A224719
- Number of (n+1)X(1+1) 0..3 arrays colored with the sum of the upper and lower median values of each 2X2 subblock.at n=2A236654
- Number of (n+1) X (3+1) 0..3 arrays colored with the sum of the upper and lower median values of each 2 X 2 subblock.at n=0A236656
- T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the sum of the upper and lower median values of each 2X2 subblock.at n=3A236657
- T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the sum of the upper and lower median values of each 2X2 subblock.at n=5A236657