30354

Appears in sequences

• Numbers m such that the factorizations of m..m+4 have the same number of primes (including multiplicities).at n=23A045941
• a(n) = ceiling(g(A000073(n))) with g(k) = (k-1)^2/(4k).at n=20A115792
• Triangle read by rows: T(n, k) = [x^k] p(x, n), where p(x, n) = (-1)^n*(1 - 2*x)^(n + 1)* Sum_{j >= 0} (3*j + 2)^n*(2*x)^j.at n=22A154594
• T(n,k)=Number of nXk 0..1 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..1 introduced in row major order.at n=58A240783
• Number of 4Xn 0..1 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..1 introduced in row major order.at n=7A240785
• Numbers n such that n, n + 1, n + 2, n + 3 and n + 4 are products of exactly three primes.at n=22A268588
• Number of sets of exactly ten positive integers <= n having a square element sum.at n=12A281870