6641664

Appears in sequences

• McKay-Thompson series of class 12A for the Monster group.at n=29A112147
• McKay-Thompson series of class 12A for the Monster group with a(0) = 6.at n=29A186829
• a(n) is the least number with exactly n prime factors, counted with multiplicity, that is the concatenation of x, 1, and x for some x.at n=13A392239