52986

Appears in sequences

• Numbers k such that 229*2^k+1 is prime.at n=18A032491
• Positions of zeros in A163897.at n=30A165480
• a(n) = 81*n^2 - 69*n + 24.at n=26A304616
• a(n) = Sum_{ i=2..n-1, j=1..i-1, gcd(i,j)=1 } (n-i)*(n-j).at n=28A332612
• Triangle read by rows: T(n,k) is the number of simple connected graphs on n unlabeled nodes with cooling number k = 1..(1+floor(n/2)).at n=33A369280