60071

Appears in sequences

• Number of 5-tuples of different integers from [ 2,n ] with no common factors among pairs.at n=46A015699
• Numbers k such that k divides the (left) concatenation of all numbers <= k written in base 15 (most significant digit on right and removing all least significant zeros before concatenation).at n=18A029532
• Polynexus numbers of order 9.at n=6A088891
• Triangle read by rows in which row n contains the smallest nontrivial set of n consecutive numbers divisible by the next n numbers respectively. The next n numbers are numbers from n(n-1)/2 +1 up to n(n+1)/2.at n=10A091793
• First column of A091793.at n=4A091794
• a(n) = sum of lengths of strings that can be generated by any starting string of n 2's and 3's, using the rule described in the Comments lines.at n=11A094005
• a(n) is the only number m such that m = pi(1^(1/n)) + pi(2^(1/n)) + ... + pi(m^(1/n)).at n=9A171270
• Starts of runs of 4 consecutive Gray-code Niven numbers (A344341).at n=40A344344
• Number of unlabeled loop-graphs with up to n vertices such that it is possible to choose a different vertex from each edge (choosable).at n=12A369145