366796

Appears in sequences

• Numbers simultaneously triangular and centered triangular.at n=5A128862
• Triangular numbers that are the sum of three consecutive triangular numbers.at n=4A129803
• Triangular numbers representable as triangular(x)*triangular(y)+1.at n=26A226389
• Numbers m such that m - 3 divides m^m + 3.at n=34A252041
• 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=40A264104
• Numbers that start a run of four consecutive triangular numbers with four prime factors (counted with multiplicity).at n=2A349774