20204

Appears in sequences

• Sum of 11 positive 9th powers.at n=13A004800
• Weighted count of partitions with distinct parts.at n=39A005895
• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 68 ones.at n=36A031836
• a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 4, where m = 2*n - 3 - 2^(p+1) and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 2, and a(3) = 3.at n=14A049956
• Numbers n such that n | 12^n + 11^n + 10^n + 9^n + 8^n + 7^n + 6^n + 5^n + 4^n.at n=41A057285
• a(n) = 3^n + 2^n + n.at n=9A120846
• Triangle read by rows: T(n,k) is the number of secondary structures of size n having k stacks of odd length (n>=0, k>=0).at n=59A202845
• Preperiod (or threshold) of orbit of Post's {00, 1101} tag system applied to the word (100)^n, or -1 if this word has an unbounded trajectory.at n=36A284119