23554

Appears in sequences

• a(0) = 1, a(n) = 23*n^2 + 2 for n>0.at n=32A010013
• Numbers n such that 87*2^n-1 is prime.at n=36A050569
• Three times partitioned numbers: the number of ways a number can be partitioned in (not necessarily different) parts and each part again so partitioned a second and a third time.at n=9A063835
• Smallest i such that there exists j such that i = x + y + z, j = x*y*z has exactly n solutions in positive integers x <= y <= z.at n=14A103277
• Number of nXnXn triangular 0..3 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors.at n=3A214347
• T(n,k)=Number of nXnXn triangular 0..k arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors.at n=18A214352
• Number of 4X4X4 triangular 0..n arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors.at n=2A214354
• Somos's sequence {b(3,n)} defined in comment in A078495: a(0)=a(1)=...=a(8)=1; for n>=9, a(n)=(a(n-1)*a(n-8)+a(n-4)*a(n-5))/a(n-9).at n=23A268199
• Expansion of (1/x) * Series_Reversion( x / ((1+x) * (1+x^2)^2) ).at n=9A369440