134217216

Appears in sequences

• Number of aperiodic binary strings of length n; also number of binary sequences with primitive period n.at n=27A027375
• Row sums of triangle T(m,n) = number of solutions to 1 <= a(1) < a(2) < ... < a(m) <= n, where gcd(a(1), a(2), ..., a(m), n) = 1, in A020921.at n=26A038199
• Number of 2n-bead balanced binary strings of fundamental period 2n, rotationally equivalent to complement.at n=27A045663
• Number of primitive (aperiodic) words of length n which contain exactly two different symbols.at n=26A056267
• List of codewords in binary lexicode with Hamming distance 18 written as decimal numbers.at n=3A075970
• Number of 8-ary sequences with primitive period n.at n=9A218125
• Number of length 9 primitive (=aperiodic or period 9) n-ary words.at n=8A218132
• a(n) = 8^n - 2^n.at n=9A248217
• Number of similarity classes of vectors with minimal Ducci period n.at n=26A269795