33564

Appears in sequences

• a(n) = T(n,n-6), array T as in A055807.at n=14A055811
• a(n) = floor(1/(n-1) * Sum_{k=1..n-1} a(k)^(n/k)), given a(0)=1, a(1)=3, a(2)=7.at n=10A079120
• Number of unrooted unlabeled not necessarily connected triangular maps on a compact closed oriented surface with 2n faces (and thus 3n edges).at n=5A129115
• Numbers n such that prime(n) + reversal(prime(n)) is a square.at n=36A227371
• Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = 7*x + 2.at n=16A257617
• Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = 7*x + 2.at n=19A257617
• Number of binary words w of length n with equal numbers of 010 and 101 subwords such that for every prefix of w the number of occurrences of subword 101 is larger than or equal to the number of occurrences of subword 010.at n=18A260697
• Partial sums of A087207.at n=51A288566