54432

Appears in sequences

• Expansion of g.f. (1+x)/(1-6*x).at n=6A003949
• a(n) = Product_{j=0..5} floor((n+j)/6).at n=37A008881
• Expansion of cos(sin(x)*log(1+x)).at n=9A009049
• a(n) = (1/12)*(n+5)*(n+1)*n^2.at n=27A014205
• Numbers of form 6^i*7^j, with i, j >= 0.at n=22A025626
• Expansion of (-1+1/(1-6*x)^6)/(36*x); related to A036084.at n=4A036224
• Expansion of ( Sum_{k>=0} k*q^(k^2) )^8.at n=39A037217
• Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*9^j.at n=30A038215
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*2^j.at n=33A038292
• Sums of 2 distinct powers of 6.at n=20A038478
• Sums of two powers of 6.at n=26A055257
• Total number of leaves (nodes of vertex degree 1) in all labeled trees with n nodes.at n=6A055541
• Coefficient triangle for certain polynomials.at n=27A055858
• a(n) = n! * [x^n] W(-x)*(W(-x) + 2)/(W(-x) + 1), where W denotes Lambert's W function.at n=6A061302
• Sum of divisors of central binomial coefficient binomial(n, floor(n/2)).at n=16A064139
• Sum of unitary divisors of central binomial coefficient C(n, floor(n/2)).at n=16A064140
• a(n) = n^3*Product_{distinct primes p dividing n} (1+1/p^3).at n=35A065959
• Triangle read by rows: T(n, k) = binomial(n, k)*k^k*(n-k)^(n-k-1) k=0..n-1.at n=22A066320
• Number of strings of length n over Z_6 with trace 0 and subtrace 4.at n=7A073975
• Number of strings of length n over Z_6 with trace 2 and subtrace 2.at n=7A073985