41807

Appears in sequences

• Partial sums of A048895.at n=6A172384
• Total number of repeated parts in all partitions of n.at n=30A194452
• Integer k associated with the conjectured record-breaking length A226686(n) of primitive Collatz-like 3x-k cycles.at n=10A226687
• Numbers k with the property that it is possible to write the base 2 expansion of k as concat(a_2,b_2), with a_2>0 and b_2>0 such that, converting a_2 and b_2 to base 10 as a and b, we have sigma(a) + sigma (b) = sigma(k) - k.at n=35A258813
• Sum of quadratic residues of (n-th prime == 3 mod 4).at n=41A282035
• Let p = n-th prime == 7 mod 8; a(n) = sum of quadratic residues mod p.at n=20A282041
• Numbers n such that n^2 = a^2 + b^5 (with integers a, b > 0) and gcd(a, b, n) = 1.at n=26A293284