1670760

Appears in sequences

• Bessel polynomial {y_n}'''(0).at n=15A065949
• Smallest number having exactly n triangular divisors.at n=27A130317
• Numerator of the harmonic mean of the first n positive Fibonacci numbers.at n=8A250743
• Highly composite numbers of class 5 (see comment in A275239).at n=36A275243
• Integers whose number of normal undulating divisors sets a new record.at n=36A355304
• a(n) is the smallest integer that has exactly n divisors whose decimal digits are in strictly increasing order.at n=39A357172
• Positions of records in A357171, i.e., integers whose number of divisors whose decimal digits are in strictly increasing order sets a new record.at n=30A357173
• Let D(k) = {d(k,i)}, i = 1,2,...,q be the set of q divisors of an integer k. a(n) is the smallest number k such that there exist exactly n distinct integers M, 1 < M <= k, where each set D(k) mod M = {0,1,2,...,M-1}.at n=26A379647