3548160
domain: N
Appears in sequences
- E.g.f. 1/((1-x)(1-x-x^2)).at n=8A052646
- SuperRefactorable numbers: m=A005179(n) such that k=m/n is an integer.at n=38A110821
- Sum of all n-digit highly composite numbers.at n=5A127390
- Triangle T(n, k) = H(n, k+1) - 2*H(n, k) - H(n, k-1), where H(n, k) = A060821(n+3, k), read by rows.at n=32A140873
- Number of n-length words w over a 6-ary alphabet {a1,a2,...,a6} such that #(w,a1) >= #(w,a2) >= ... >= #(w,a6) >= 1, where #(w,x) counts the letters x in word w.at n=5A226885
- Terms of A005179 divisible by their indices in order of appearance in A005179.at n=35A262983
- Number of permutations p of [n] such that |p(i+9) - p(i)| <> 9 for i in [n-9].at n=10A360462
- Triangle read by rows: T(n, k) = 3^n*Sum_{j=0..k} (-1)^(k - j)*binomial(k, j) * Pochhammer(j/3, n).at n=42A371076