60145

Appears in sequences

• Number of ordered quadruples of integers from [ 2,n ] with no common factors between triples.at n=38A015639
• Number of primitive multiplex juggling sequences of length n, base state <2,2> and hand capacity 2.at n=6A136782
• a(n) = (4*n + 3)*(1 + 2*n^2)/3.at n=28A168574
• Number of zero-sum -3..3 arrays of n elements with first through third differences also in -3..3.at n=10A202506
• Products of three distinct primes p1, p2 and p3 (sphenic numbers) with p1<p2 and p3 is the concatenation of p1 with p2.at n=15A281592