53015

Appears in sequences

• Integers k that divide LS(k), where LS is the "Look and Say" function (A045918).at n=26A079342
• Integers k such that k divides LS(k) or LS(k) divides k, where LS is the "Look and Say" function (A045918).at n=28A110744
• Run length of the n-th run of Fibonacci composites.at n=33A182600
• Number of partitions p = [x(1), ..., x(k)], where x(1) >= x(2) >= ... >= x(k), of n such that min(x(i) - x(i-1)) < number of distinct parts of p.at n=42A241823
• a(n) = Sum_{i=1..n+1} prime(i)*Sum_{j=0..i-1} binomial(n,j).at n=9A343414