19652

Appears in sequences

• Denominator of sum of -3rd powers of divisors of n.at n=33A017670
• a(n) = 4*n^3.at n=17A033430
• a(n) = ceiling((n^3)/2).at n=34A036486
• a(n) = floor((n^3)/2).at n=34A036487
• Numbers k that divide 4^k + 2^k or 8^k + 4^k.at n=44A045577
• Octahedral torus number: a(n) = n^2 + 2*(Sum_{k=1..n-1} k^2) - 2*(floor((n+1)/2)^2 + 2*(Sum_{k=1..floor((n+1)/2)-1} k^2)) + (1 - (-1)^n)/2.at n=33A050442
• Least k for which the integers Floor(k/m^2) for m=1,2,...,n are distinct.at n=38A054062
• Numbers n such that n | 8^n + 7^n + 6^n + 5^n + 4^n + 3^n + 2^n + 1^n.at n=43A056751
• Floor(X/Y) where X = concatenation of the (n+1)-st even number through the (2n)-th even number and Y = concatenation of first n even numbers.at n=22A067091
• Numbers k such that the squarefree part of k equals A062799(k).at n=29A069551
• Largest proper divisor of n^3.at n=32A071378
• Row sums of triangle A074135.at n=33A074132
• Expansion of g.f. (1 + 4*x)/(1 - 17*x^2).at n=7A096881
• Number of permutations of length n which avoid the patterns 1342, 3241, 4312.at n=9A116843
• Numbers of the form b^m/2 for even b and odd m > 2.at n=23A126032
• a(n) = denominator(3*(3+(-1)^n)/(n+1)^3).at n=33A129196
• The denominator of 2/n^3.at n=34A129204
• Interlacing n^3/2 and n^2(n + 1)/2.at n=33A130656
• Numbers of the form p^2 * q^3, where p,q are distinct primes.at n=32A143610
• Denominator of Euler(n, 1/17).at n=3A156531