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A062858 In the triangular multiplication table of size A062859(n), the smallest number which appears n times.

%I A062858 #9 Oct 16 2023 23:30:00
%S A062858 1,4,12,36,60,120,120,360,360,360,840,840,2520,2520,2520,2520,2520,
%T A062858 5040,5040,5040,5040,5040,5040,10080,10080,27720,27720,27720,27720,
%U A062858 55440,55440,55440,55440,55440,55440,55440,55440,55440,55440,55440
%N A062858 In the triangular multiplication table of size A062859(n), the smallest number which appears n times.
%C A062858 Smallest number to appear n times in any m X m multiplication table (excluding the numbers below the diagonals).
%e A062858 a(4)=36 because 36 is the smallest number to appear 4 times in the triangular multiplication table of size A062859(4)=18.
%o A062858 (Python)
%o A062858 from itertools import count
%o A062858 from collections import Counter
%o A062858 def A062858(n):
%o A062858     c = Counter()
%o A062858     for m in count(1):
%o A062858         for i in range(1,m+1):
%o A062858             ij = i*m
%o A062858             c[ij] += 1
%o A062858             if c[ij]>=n:
%o A062858                 return ij # _Chai Wah Wu_, Oct 16 2023
%Y A062858 Cf. A027424, A062851, A062854, A062855, A062856, A062857, A062859, A000217.
%K A062858 nonn
%O A062858 1,2
%A A062858 Ron Lalonde (ronronronlalonde(AT)hotmail.com), Jun 25 2001
%E A062858 More terms from _Don Reble_, Nov 08 2001