25565

Appears in sequences

• Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 11.at n=20A051976
• Numbers k such that k and k^2 use only the digits 2, 3, 5, 6 and 9.at n=14A137082
• Number of binary strings of length n with no substrings equal to 0001 0110 or 1101.at n=17A164481
• Number of aperiodic necklaces (Lyndon words) with k<=5 black beads and n-k white beads.at n=43A277629
• Number of partitions of n^2 into distinct odd parts.at n=12A281489
• Negated inverse Euler transform of {-1 if n is a triangular number else 0, n > 0} = -A010054.at n=31A320784
• a(n) = minimal positive k such that the concatenation of decimal digits n and n+1 is a divisor of the concatenation of n+2, n+2+1, ..., n+2+k.at n=41A332830