26216

Appears in sequences

• a(n) is the number of distinct (infinite) output sequences from binary n-stage shift register which feeds back the complement of the last stage.at n=20A000016
• Number of circulant tournaments on 2n+1 nodes up to Cayley isomorphism.at n=19A002086
• McKay-Thompson series of class 8E for the Monster group.at n=37A029841
• Number of nonisomorphic circulant tournaments, i.e., Cayley tournaments for cyclic group of order 2n-1.at n=20A049288
• McKay-Thompson series of class 30B for the Monster group with a(0) = 0.at n=39A058613
• a(0) = 1, a(1) = 8; for n >= 2 a(n) is the number of degree-n monic reducible polynomials over GF(8), i.e., a(n) = 8^n - A027380(n).at n=5A058823
• Numbers n such that the sum of the prime factors of n equals the product of the digits of n.at n=31A067173
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 5.at n=17A068011
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 10.at n=18A068031
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 20.at n=19A068041
• McKay-Thompson series of class 16b for the Monster group.at n=37A112151
• Number of binary vectors (x_1,...x_(n-1)) satisfying Sum_{i=1..n-1} (-1)^i*i*x_i = 0 (mod n).at n=18A114702
• Numbers k such that A003313(k) = A003313(5*k).at n=7A116460
• Number of permutations of length n which avoid the patterns 2143, 3124, 3421.at n=10A116761
• Unsigned row sums of triangle A118404.at n=17A118406
• Triangle read by rows: (1/5) * (A007318^4 - A007318^(-1)) as infinite lower triangular matrices.at n=29A131050
• McKay-Thompson series of class 8E for the Monster group with a(0) = 4.at n=74A131125
• a(n) = A137505(2n) + A137505(2n+1).at n=16A167291
• a(n) = A137505(2n) + A137505(2n+1).at n=17A167291
• Appearance radii of visible vectors in the medial axis test mask for the Euclidean distance in Z^2.at n=22A171988