107730

Appears in sequences

• a(n) = Sum_{k=1..n-1} k*sigma(k)*sigma(n-k).at n=26A000441
• a(n) = (n+1)*binomial(n+4, 4).at n=17A027800
• Numbers n that raised to the powers from 1 to k (with k>=1) are multiple of the sum of their digits (n raised to k+1 must not be a multiple). Case k=13.at n=15A135198
• Lower Pythagorean twins.at n=35A228876
• a(n) = n*(n + 1)*(5*n - 4)/2.at n=35A237616
• Triangle read by rows: Polynomial coefficients per comment.at n=42A290053
• Consecutive states of the linear congruential pseudo-random number generator (2661*s + 36979) mod 175000 when started at s=1.at n=11A385361