13176688

Appears in sequences

• Integers of the form Product p_j^k_j = Product k_j^p_j; p_j in A000040.at n=29A008478
• Triangle of coefficients in expansion of (2 + 7*x)^n.at n=42A013623
• Triangle of coefficients in expansion of (2 + 7*x)^n.at n=43A013623
• Denominator of sum of -7th powers of divisors of n.at n=13A017678
• Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*2^j.at n=37A038268
• Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*2^j.at n=38A038268
• Mean integral quotients associated with A048753.at n=38A048754
• The work performed by a function f:{1,...,n} -> {1,...,n} is defined to be work(f) = Sum_{i=1..n} |i - f(i)|; a(n) is equal to sum(work(f)) where the sum is over all functions f:{1,...,n}->{1,...,n}.at n=6A111868
• Triangle, read by rows, T(n,k) = numerator of the maximum of the k-th Bernstein polynomial of degree n; denominator is A128434.at n=47A128433
• Triangle, read by rows, T(n,k) = numerator of the maximum of the k-th Bernstein polynomial of degree n; denominator is A128434.at n=52A128433
• a(p_1^e_1*p_2^e_2*.....*p_m^e_m) = (p_1^p_1)^e_1*(p_2^p^2)^e_2*.....*(p_m^p_m)^e_m where p_1^e_1*p_2^e_2*.....*p_m^e_m is the prime decomposition of n.at n=27A133482
• Number of (n+1)X2 0..3 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=6A203789
• Number of (n+1) X 8 0..3 arrays with every 2 X 2 subblock having equal diagonal elements or equal antidiagonal elements.at n=0A203795
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=21A203796
• Integers that are one third of their arithmetic derivatives.at n=8A282771
• Numbers k such that k^2 is sum of two positive 7th powers.at n=6A291828
• Numbers n with exactly three times as many factorizations (A001055) as strict factorizations (A045778).at n=15A331198