82176

Appears in sequences

• The Merrifield-Simmons index of the para-polyphenylene chain of length n.at n=4A228606
• Triangle, read by rows, that transforms diagonals in the table of coefficients in the successive iterations of the g.f. (A233531) such that column 0 consists of all zeros after row 1.at n=60A233530
• Number of 2Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.at n=9A284076
• a(n) is the cyclic length of the iterative sequence f(k) = prime(f(k-1) mod 2^n) with f(0) = 1.at n=34A326613