Sequences

Number of words of length n (n >= 1) over a two-letter alphabet having a minimal period of size n-2.

Taxman sequence: define T(S) by max{x+T(S \ {c : c|x})}, where the max is over all x in S for which S also contains a proper divisor of x; if no such x exists, T(S)=0; set T(n)=T({1,...,n}).

e + 2 Pi.

Decimal expansion of e^Pi + Pi^e.

Decimal expansion of e^Pi + Pi + e.

Expansion of 1/((1-4x)(1-6x)(1-7x)).

Place n queens on an n X n board so as to leave the maximal number of unattacked squares; sequence gives number of different solutions.

Number of inequivalent ways of choosing n squares from an n X n board, considering rotations and reflections to be the same.

Number of possible chess diagrams after n plies.

Cyclotomic polynomials at x=2.

Cyclotomic polynomials at x=3.

Cyclotomic polynomials at x=4.

Cyclotomic polynomials at x=5.

Cyclotomic polynomials at x=6.

Cyclotomic polynomials at x=7.

Cyclotomic polynomials at x=8.

Cyclotomic polynomials at x=9.

Cyclotomic polynomials at x=10.

Cyclotomic polynomials at x=11.

Cyclotomic polynomials at x=12.

Cyclotomic polynomials at x=13.

Lengths of quantum cellular automata that cycle through all possible values of the QCA vector.

Expansion of g.f. 1/((1-4*x)*(1-6*x)*(1-8*x)).

Primes with primitive root 3.

Primes with primitive root 5.

Primes with primitive root 6.

Primes with primitive root 7.

Primes with primitive root 8.

Primes with primitive root 11.

Primes with primitive root 12.

Primes with primitive root 13.

Primes with primitive root 14.

Primes with primitive root 15.

Primes with primitive root 17.

Primes with primitive root 18.

Primes with primitive root 19.

Primes with primitive root 20.

Primes with primitive root 21.

Primes with primitive root 22.

Primes with primitive root 23.

Primes with primitive root 24.

Primes with primitive root 26.

Primes with primitive root 27.

Primes with primitive root 28.

Primes with primitive root 29.

Primes with primitive root 30.

Primes with primitive root 31.

Primes with primitive root 32.

Primes with primitive root 33.

Primes with primitive root 34.