30202

Appears in sequences

• Number of unrooted triangulations with reflection symmetry of a quadrilateral with n internal nodes.at n=10A005505
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 11.at n=32A031599
• Any two consecutive digits in the sequence sum up to a prime.at n=38A158652
• T(n,k) is the k-th partition of n in graded reverse lexicographic ordering (A080577) encoded as concatenation of parts which are represented in (zeroless) bijective base-9 numeration (A052382) and separated by zeros; triangle T(n,k), n >= 0, 1 <= k <= A000041(n), read by rows.at n=38A332567