326592

Appears in sequences

• Expansion of g.f. (1+x)/(1-6*x).at n=7A003949
• Theta series of 12-dimensional Coxeter-Todd lattice K_12.at n=7A004010
• Theta series of the coset of the E_7 lattice in its dual.at n=21A005931
• a(n) = Product_{i=0..6} floor((n+i)/7).at n=43A009641
• Triangle of coefficients in expansion of (1+6x)^n.at n=34A013613
• Triangle of coefficients in expansion of (6+7x)^n.at n=22A013627
• Numbers of form 6^i*7^j, with i, j >= 0.at n=29A025626
• Numbers k that divide the (right) concatenation of all numbers <= k written in base 9 (most significant digit on left).at n=37A029454
• Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*4^j.at n=38A038222
• Triangle read by rows: (i,j)-th entry is binomial(i,j)*3^(i-j)*8^j.at n=30A038226
• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j).at n=29A038255
• Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*6^j.at n=26A038272
• Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*3^j.at n=33A038281
• Sums of 2 distinct powers of 6.at n=27A038478
• a(n) = n*6^(n-1).at n=6A053469
• Triangle read by rows: T(n,k) = number of labeled endofunctions on n points with k fixed points.at n=29A055134
• Sums of two powers of 6.at n=34A055257
• a(n) = n*(n-1)^(n-1).at n=6A055897
• Triangle read by rows: T(n, k) = binomial(n, k)*k^k*(n-k)^(n-k-1) k=0..n-1.at n=27A066320
• a(n) = prime(n) * (prime(n) - 1)^(prime(n) - 1).at n=3A081701