18616

Appears in sequences

• a(n) = position of n^3 + (n+1)^3 + (n+2)^3 in A024975.at n=38A024980
• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 25 ones.at n=9A031793
• a(n) = Sum_{i=1..n} F(i)^F(n-i+1).at n=8A113122
• Number of free hexagonal polygons of symmetry class C_(2h) and area n.at n=15A121210
• Numbers k such that 2*k^2 + 17 is a square.at n=10A144797
• Number of (n+1)X4 binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.at n=6A185792
• Number of (n+1)X8 binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.at n=2A185796
• T(n,k) = Number of (n+1) X (k+1) binary arrays with no 2 X 2 subblock sum equal to any horizontal or vertical neighbor 2 X 2 subblock sum.at n=38A185798
• T(n,k) = Number of (n+1) X (k+1) binary arrays with no 2 X 2 subblock sum equal to any horizontal or vertical neighbor 2 X 2 subblock sum.at n=42A185798
• Sophie Germain 5-almost primes.at n=37A211162
• Number of (w,x,y) with all terms in {0,...,n} and |w-x| != |x-y|.at n=26A212960
• Number of cyclotomic cosets of 9 mod 10^n.at n=34A220020
• Szeged index of the grid graph P_3 X P_n.at n=12A245827
• Sum, over all binary strings w of length n, of the length of the shortest border of w.at n=13A331392
• Numbers whose distance to the nearest cube equals the distance to the nearest product of 3 consecutive integers (three-dimensional oblong).at n=26A342873
• a(1) = 2; for n > 1, a(n) = a(n-1)*prime(n) if a(n-1) <= prime(n), otherwise a(n) = a(n-1) mod prime(n).at n=40A387775