89700

Appears in sequences

• 11-gonal (or hendecagonal) pyramidal numbers: a(n) = n*(n+1)*(3*n-2)/2.at n=39A007586
• a(n) = n*(n+1)*(n+2)*(n+3)/4.at n=23A033487
• Composite n added to sum of its prime factors is nextprime(n).at n=2A050765
• Denominators of row 4 of table described in A051714/A051715.at n=21A051723
• a(n) =(A001359[n]^2-1)/2.at n=26A117849
• a(n) is the smallest number m such that phi(m)+sigma(m)=n*pi(m).at n=33A145747
• a(n) = 4394*n + 1820.at n=20A156636
• Number of -n..n arrays x(0..3) of 4 elements with zero sum and no two or three adjacent elements summing to zero.at n=25A200431
• Number of n X 3 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=22A207363