A054848 n - nearest integer to (nearest integer to n^(2/3))^(3/2).

0, 0, -1, 0, -1, 0, 1, -1, 0, 1, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -1, 0, 1, 2, -3, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, -2, -1, 0, 1, 2, 3, -2, -1, 0, 1, 2, 3, -2, -1, 0, 1, 2, 3, -2, -1, 0, 1, 2, 3, -2, -1, 0, 1, 2, 3, -3, -2, -1, 0, 1, 2, 3, -2

Offset: 0

Author

Henry Bottomley, Apr 14 2000

Keywords

• easy
• sign

Crossrefs

Cf. A002821, A054846, A054847.

Formula

a(n) = n-A002821(A054846(n)) = n-A054847(n)