108843

Appears in sequences

• Numbers n such that s=n^2 gives prime quadruples (30s+11, 30s+13, 30s+17, 30s+19).at n=20A087772
• a(n) is the smallest positive multiple of 2n-1 that contains the binary representation of n in its binary representation and that is a palindrome when written in binary.at n=35A158789
• G.f. A(x) satisfies: A(x) = 1 / (1 - x + x^4 * A(x)).at n=26A349048