24496

Appears in sequences

• Numerator of L(n) = (Sum_{k=1..n} k^n)/(Sum_{k=1..n-1} k^n).at n=5A043299
• Let S(1) = {1} and, for n>1 let S(n) be the smallest set containing x, 2x and x+2 for each element x in S(n-1). a(n) is the number of elements in S(n).at n=20A122554
• Let f(n) = exp(Pi*sqrt(n)); sequence gives numbers n such that f(n) - floor(f(n)) < 1/10^3.at n=28A127028
• a(n) = number of integers in range [2^(n-1),(2^n)-1] which permutation A209861/A209862 sends to even-sized orbits.at n=16A209868
• Number of n X 4 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 5 binary array having a sum of three or less, with rows and columns of the latter in lexicographically nondecreasing order.at n=6A227267
• T(n,k)=Number of nXk 0,1 arrays indicating 2X2 subblocks of some larger (n+1)X(k+1) binary array having a sum of three or less, with rows and columns of the latter in lexicographically nondecreasing order.at n=48A227269
• T(n,k)=Number of nXk 0,1 arrays indicating 2X2 subblocks of some larger (n+1)X(k+1) binary array having a sum of three or less, with rows and columns of the latter in lexicographically nondecreasing order.at n=51A227269
• Expansion of Product_{k=1..24} theta_3(q^k), where theta_3() is the Jacobi theta function.at n=33A320248
• Sum of the corners of a 2n+1 X 2n+1 square spiral.at n=38A325958
• a(n) is the least positive integer that can be expressed as the sum of a prime number and a positive cube in exactly n ways.at n=8A365290
• Expansion of (1 - x^3 + x^4)/((1 - x^3 + x^4)^2 - 4*x^4).at n=28A376788