67228

Appears in sequences

• Denominator of sum of -5th powers of divisors of n.at n=13A017674
• Numbers of form 4^i*7^j, with i, j >= 0.at n=30A025619
• Numbers whose prime factors are 2 and 7.at n=35A033847
• Triangle of numbers in which i-th row is {2^(i-j)*7^j, 0<=j<=i}; i >= 0.at n=33A036565
• Numbers n such that n | 11^n + 10^n + 9^n + 8^n + 7^n + 6^n + 5^n.at n=34A057264
• Numbers n such that n | 7^n + 5^n + 3^n +1.at n=31A057830
• Values of z in positive integer solutions of x^2 + y^5 = z^3, listed in increasing order of z.at n=34A070067
• The terms of A055258 (sums of two powers of 7) divided by 2.at n=26A073218
• a(n) = n^5*(n+1)/2.at n=7A168351
• Product of the 5th power of a prime and different distinct prime of the 2nd power (p^5*q^2).at n=20A179646
• Floor(1/{(7+n^4)^(1/4)}), where {}=fractional part.at n=48A184631
• Number of nX3 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.at n=5A208704
• T(n,k)=Number of nXk 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.at n=33A208709
• Number of 6Xn 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.at n=2A208713
• Numbers k such that digital root of k equals largest prime factor of k.at n=38A209192
• Minimal number (in decimal representation) with n nonprime substrings in base-7 representation (substrings with leading zeros are considered to be nonprime).at n=21A217107
• Numerators of Postnikov's hook-length formula 2^n*(n+1)^(n-1)/n!.at n=6A241590
• Triangle read by rows: coefficients T(n,k) of a binomial decomposition of n as Sum(k=0..n)T(n,k)*binomial(n,k).at n=32A244142
• Expansion of g.f. (1-3*x)/(1-7*x).at n=6A270471
• Number of permutations of n elements divided by the number of 6-ary heaps on n+1 elements.at n=39A273734