671346

Appears in sequences

• Number of squares (of another matrix) in the group GL(2,Z_n) described in sequence A000252.at n=35A068516
• Least of five consecutive numbers which are cubefree and not squarefree, i.e., {k, k+1, k+2, k+3, k+4} are in A067259.at n=17A071124
• Least starting number initiating cubefree but nonsquarefree chain of consecutive integers with length n {j,j+1,...,j+n-1}; i.e., start of n consecutive numbers in A067259.at n=5A071125
• Smallest term of a run of at least 7 consecutive integers which are not squarefree.at n=1A077640
• a(n) begins the first run of at least n consecutive numbers with same number of exponential divisors.at n=6A318529
• a(n) is the smallest number k such that factorizations of n consecutive integers starting at k have the same excess of number of primes counted with multiplicity over number of primes counted without multiplicity (A046660).at n=5A323253
• a(n) is the smallest number k such that n consecutive integers starting at k have the same number of square divisors (A046951).at n=6A338628
• a(n) is the least start of a run of exactly n consecutive integers with the same maximal exponent in their prime factorization, or -1 if no such run exists.at n=5A369022