30709

Appears in sequences

• "BGK" (reversible, element, unlabeled) transform of 2,2,2,2,...at n=16A032061
• Numbers whose base-4 representation contains exactly four 1's and four 3's.at n=24A045133
• Numerators b(n) of Pythagorean approximations b(n)/a(n) to sqrt(3/4).at n=4A195635
• Irregular array T(n,k) of the numbers of non-extendable (complete) non-self-adjacent simple paths starting at each of a minimal subset of nodes within a square lattice bounded by rectangles with nodal dimensions n and 6, n >= 2.at n=36A214025
• Irregular array T(n,k) of the numbers of non-extendable (complete) non-self-adjacent simple paths starting at each of a minimal subset of nodes within a square lattice bounded by rectangles with nodal dimensions n and 7, n >= 2.at n=33A214037
• Number of n X 2 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 3 binary array having a sum of two or less, with rows and columns of the latter in lexicographically nondecreasing order.at n=26A227259
• Numerators of convergents to Glaisher-Kinkelin constant (A074962).at n=10A279919
• Number of partitions p of n such that (number of numbers in p that have multiplicity 1) != (number of numbers in p having multiplicity > 1).at n=40A330147
• Products p*q*r of three distinct primes such that (p*q) mod r, (p*r) mod q and (q*r) mod p are all prime.at n=32A338704
• Products p*q*r of three distinct primes such that s=(p*q) mod r, t=(p*r) mod q and u=(q*r) mod p, and s+t+u are all prime.at n=3A338705