47141

Appears in sequences

• a(n)^2 is smallest positive square starting with a string of n 2's.at n=5A034980
• a(n) is the index of the smallest triangular number containing exactly n 1's.at n=6A048356
• Column 8 of triangle A055907.at n=6A055914
• Numbers whose square starts with 5 identical digits.at n=2A119866
• Members of a pair (m,n) such that sigma(m) = sigma(n) = sigma(n-m), m < n where sigma = A000203.at n=17A239939
• Members of a pair (m,n) such that sigma(m) = sigma(n) = sigma(n-m), m < n where sigma = A000203.at n=19A239939