33723

Appears in sequences

• Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LEV = Levyne Ca9[Al18Si36O108].50H2O starting with a T1 atom.at n=6A019026
• Numbers n with k divisors such that n-1 and n+1 in binary representation have same number k of 0's as 1's.at n=30A191369
• Least k with 2n divisors such that k-1 and k+1 in binary representation have same number 2n of 0's as 1's.at n=3A191534
• Numbers n such that c(n) = p_{2n}, where c(n) is the n-th Chebyshev prime and p_{2n} the 2n-th prime.at n=9A196674
• E.g.f. 1/(1 - tan(2*x))^(1/2).at n=6A235131
• Dimension of BSym_n.at n=21A269628