36960

Appears in sequences

• Quadrinomial coefficients.at n=13A005720
• Expansion of e.g.f.: cosh(tan(x)*log(1+x)).at n=8A009163
• Theta series of 10-d 11-modular Craig lattice A_10^(3).at n=14A028995
• a(n) = n*(n+1)*(5*n+1)/6.at n=34A033994
• Expansion of e.g.f.: x^4*(log(1-x))^2.at n=8A052799
• Numbers k that divide the number of partitions of k into distinct parts (A000009).at n=16A056848
• LCM of n-th primorial number and its Euler totient.at n=5A058251
• Least prime signature numbers that are not a Jordan-Polya number.at n=39A064783
• Numbers n such that sigma(n)^2 > 9*sigma_2(n) where sigma_2(n) is the sum of squares over the divisors of n.at n=16A068378
• a(n) = the least positive integer k such that b(k) = n, where b(k) (A076526) is defined by b(k) = r * max{e_1,...,e_r} if k = p_1^e_1 *...* p_r^e_r is the canonical prime factorization of k.at n=24A076745
• Triangle read by rows: T(n,k) = Sum_{i=k..n} i!*Stirling2(n,i), n >= 1, 1 <= k <= n.at n=25A084416
• Triangle read by rows: T(n,k)=sum((n+1-i)!*stirling2(n,n+1-i),i=1..k), n>=1, 1<=k<=n.at n=23A084417
• Smallest numbers having exactly n divisors d>1 such that also d+1 is a divisor.at n=14A088726
• Numbers that can be expressed as the difference of the squares of primes in exactly seven distinct ways.at n=10A092003
• Smallest perimeter S such that exactly n distinct Pythagorean triangles with this perimeter can be constructed.at n=28A099830
• Numbers n which are palindromic in more bases b, 1<b<n, than any previous number.at n=28A107129
• Riordan array (1-u, u) where u=(-1 + sqrt(1+8*x))/4.at n=38A110292
• Triangle, read by rows, where T(n,k) = n!/(k!*(n-3*k)!*3^k) for n>=3*k>=0.at n=32A118931
• Number of n X n real symmetric (0,1)-matrices having maximal determinant (=A119002(n)).at n=7A119004
• Smallest m such that A124508(m) = A124509(n).at n=51A124510