43055

Appears in sequences

• Numbers k such that 2^(k+1) == 1 (mod k).at n=28A187787
• Least number k not divisible by 10 such that k^n contains n zeros.at n=30A241495
• Average number of binary strings of length n with Levenshtein distance <= 3 from a uniform randomly sampled binary string of this length, rounded to nearest integer.at n=40A332918
• a(n) is the least number k not ending in 0 such that k^n has at least n 0's in its decimal expansion.at n=30A368397
• Expansion of 1/((1 - x^3 - x^4)^2 - 4*x^7).at n=30A376724