252645136

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=34A000016
• a(n) = ceiling(2^(n-1)/n).at n=33A053637
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 17.at n=32A068038
• 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=32A114702
• Number of frieze patterns of length n under a certain group (see Pisanski et al. for precise definition).at n=17A123046
• a(n) = A000016(2*n).at n=17A300668