22933

Appears in sequences

• Numbers whose set of base-12 digits is {1,3}.at n=36A032919
• a(n) = a(n-1) + a(m) for n >= 4, where m = 2*n - 2 - 2^(p+1) and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = a(2) = 1 and a(3) = 2.at n=35A050031
• Numbers n such that [A070080(n), A070081(n), A070082(n)] is an obtuse isosceles integer triangle with prime side lengths.at n=31A070135
• Numbers k such that 6*p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*(k+5)*p(k+6)-1 and 6*p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*(k+5)*p(k+6)+1 are twin primes with p(h) = h-th prime.at n=9A129313
• a(n) = 52*n^2 + 1.at n=21A158644
• a(n) = 15n^2 + 3n + 1.at n=38A165806
• Number of (n+1)X(n+1) binary arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors.at n=8A186453
• Number of (w,x,y) with all terms in {0,...,n} and w>=range{w,x,y}.at n=33A212968
• Number of partitions of n having depth 3; see Comments.at n=53A237978
• Number of partitions of n that are separable by the least part; see Comments.at n=47A239515
• Maximal term of TRIP-Stern sequence of level n corresponding to permutation triple (e,13,23).at n=29A271486
• Number of achiral color patterns (set partitions) for a row or loop of length n using exactly 4 colors (sets).at n=16A304974
• Integers k such that the length of decimal expansion of k^k is a repdigit.at n=26A330192