50086

Appears in sequences

• Least k such that first k terms of A022303 contain n more 2's than 1's.at n=33A025518
• Smallest n-digit triangular number beginning with n.at n=4A077506
• Row sums of triangle A093922.at n=23A093925
• Triangular numbers which are the sum of distinct double factorials (A006882).at n=26A115650
• a(n) = m*(m+1)/2, where m = floor(n^(5/2)).at n=9A185542
• Primitive numbers in A229307.at n=31A229311
• Maximum water retention of a number octagon of order n.at n=7A260302
• Numbers n with the property that the symmetric representation of sigma(n) has four parts, each of width one and two regions meet at the center of the Dyck path.at n=20A264104
• Triangular numbers that in base 2 have the same number of 0's and 1's.at n=35A345348
• Triangular numbers such that the sum of cubes of their digits is prime.at n=28A345351