44370
domain: N
Appears in sequences
- Number of self-converse semigroups of order n.at n=7A029851
- a(n) = n*(n+1)*(n^2+1)/2.at n=17A071237
- Numbers k such that 2k+1, 4k+1, 6k+1 and 8k+1 are primes.at n=24A124409
- Numbers k such that 2k+1, 4k+1, 6k+1, 8k+1 and 10k+1 are primes.at n=3A124410
- Numbers k such that 2*k+1, 4*k+1, 8*k+1 and 16*k+1 are primes.at n=33A124412
- a(n) = floor((n + 1/2)^5).at n=8A219088
- Expansion of 1/(1 - x^4 - x^5 - x^6 - x^7 - x^8 + x^12).at n=45A225501
- Number of ways of writing n as the sum of 10 triangular numbers from A000217.at n=17A226254
- Number of Sidon subsets of {1,...,n} of size 6.at n=30A241690
- Number of cyclic arrangements of S={2,3,...,n+1} such that the difference of any two neighbors is greater than 1, and a divisor of their sum.at n=26A242532
- Nonpalindromic positive integers k such that the absolute value of k^2 - reverse(k)^2 is a square.at n=7A256515
- a(n) = n*(n + 11)*(n + 22)*(n + 33)/24.at n=18A264448
- The growth series for the affine Coxeter (or Weyl) group [3,3,5] (or H_4).at n=48A266783
- Those primitive elements of A337386 that have exactly one primitive nondeficient divisor (A006039).at n=17A341604
- E.g.f. satisfies A(x) = (1 + x * exp(x) * A(x))^2.at n=5A377574