A095865 Smallest n-digit triangular number - smallest n-digit number.

0, 0, 5, 35, 11, 128, 405, 1628, 5153, 6281, 20331, 404505, 1326005, 2437316, 12392316, 42485480, 37150046, 18810, 179470703, 2237948990, 10876002500, 22548781025, 26940078203, 242416922750, 572687476751, 4117080477500

Offset: 1

Author

Ray Chandler, Jun 28 2004

Keywords

• base
• easy
• nonn

Crossrefs

Cf. A068092, A068093, A068094, A095863, A095864, A095866.

Formula

a(n) = A068093(n) - 10^(n-1).