71524

Appears in sequences

• Number of binary strings of length n with equal numbers of 00000 and 10101 substrings.at n=17A164189
• G.f.: 1/(1 - x/(1 - x^3/(1 - x^4/(1 - x^7/(1 - x^11/(1 - x^18/(1 -...- x^Lucas(n)/(1 -...)))))))), a continued fraction.at n=29A206742
• Number of 2 X 2 matrices with all elements in {0,1,...,n} and determinant >= 3n.at n=21A210368