23325

Appears in sequences

• Number of permutations of length n which avoid the patterns 2134, 3421, 4312.at n=15A116766
• Sum of cyclic permutations of 123...n seen as number written in base n+1: ((n+1)^n-1)*(n+1)/2.at n=4A124797
• Let f(n) = exp(Pi*sqrt(n)); sequence gives numbers n such that f(n) - floor(f(n)) < 1/10^3.at n=27A127028
• Let f(n) = exp(Pi*sqrt(n)); sequence gives numbers n such that f(n) - floor(f(n)) < 1/10^4.at n=5A127029
• Terms in A046034 which are pairwise products of terms in A046034.at n=21A153446
• a(n) is the smallest number whose English name has the letter "i" in the n-th position, or -1 if no such number exists.at n=38A164793
• Numbers k such that 6^7 + k^2 is a square.at n=21A180971
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 441", based on the 5-celled von Neumann neighborhood.at n=14A282224
• Numbers k such that k plus the sum of the fifth powers of the digits of k is a cube.at n=7A341286
• Numbers of the form k*(k^5 +- 1)/2.at n=10A361263
• a(n) = p(n)*p(n+1)*(p(n+1) - p(n)) - 1, where p(n) = prime(n).at n=27A383241