166608

Appears in sequences

• Convolution of natural numbers >= 2 and the partition numbers (A000041).at n=30A082775
• Numbers n such that 17, n, n+1 are the sides of a Heron triangle, i.e., a triangle with integer sides and integer area.at n=18A145820
• Triangle T(n,k) read by rows: the number of independent sets of size k in the 132 core of size n.at n=42A278390
• a(n) is the least number k such that the equation phi(x) = k has exactly n solutions and the arithmetic mean of these solutions is an integer, or -1 if no such number exists.at n=31A389860