28960

Appears in sequences

• Number of vectors abcdefg with a,b,... >= 0, a+...+g=n, a>={b,...g}.at n=19A014073
• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 85.at n=33A031583
• Integer part of (Product(n^((1 + log(1 + i))/i^2), {i, 1, n})).at n=24A062486
• Nearest integer to (Product(n^((1 + log(1 + i))/i^2), {i, 1, n})).at n=24A062487
• Sum of n-th row of triangle in A082196.at n=36A082199
• Number of nonisomorphic systems enumerated by A102895.at n=5A108800
• Triangle read by rows: T(i,j) for the recurrence T(i,j) = (T(i-1,j) + 1)*i.at n=30A121662
• a(n) = n*( a(n-1)+1 ), initialized by a(1) = -1.at n=7A224869
• Triangle read by rows: T(n,k) is the number of compositions of n having degree of asymmetry equal to k (n>=0; 0<=k<=n/3).at n=67A275433
• Expansion of Product_{k>=0} (1-x^(4*k+3))^(4*k+3).at n=46A285213
• Triangle read by rows: T(m,n) = Sum_{i=1..n} P(m,i) where P(m,n) = m!/(m-n)! is the number of permutations of m items taken n at a time, for 1 <= n <= m.at n=33A285268
• Expansion of Product_{k>=0} (1 + x^(4*k+3))^(4*k+3).at n=46A285339
• Number of non-isomorphic sets of subsets of {1..n} that are closed under union and cover all n vertices. First differences of A193675.at n=5A326907
• Numbers k such that each of k, k+1, k+2, and k+4 is a sum of two squares.at n=37A328224
• Irregular triangle read by rows where T(n,k) is the number of independent sets of size k in the n-folded cube graph.at n=21A355227