106600

Appears in sequences

• Numbers k such that k and k+1 have the same sum of squarefree divisors, or sqf(k) = sqf(k+1), where sqf(k) = A048250(k).at n=28A063964
• Numbers k such that k and k^2 use only the digits 0, 1, 3, 5 and 6.at n=42A136843
• a(n) = n^4 + 5*n^2 + 4.at n=18A156798
• a(n) = A165966(n)/12.at n=37A166119
• a(n) = k, index of A165959(k) at record values.at n=21A230146