164175

Appears in sequences

• Numbers k such that phi(k) = phi(k+1).at n=40A001274
• a(n) = 11^n+5^n-1^n.at n=5A155638
• a(n) = pg(n, 3) + pg(n, 4) + ... + pg(n, n) where pg(n, m) is the m-th n-th-order polygonal number.at n=32A245679