52018

Appears in sequences

• Numbers k such that sigma(k) = sigma(k+11).at n=21A015881
• Number of binary strings of length n with equal numbers of 0001 and 1100 substrings.at n=17A164164
• Numbers k such that (182*10^k + 1)/3 is prime.at n=23A282358
• Expansion of 1/(1 - x/(1 - 9*x^3)^(1/3)).at n=17A371458