A067113 Let N = 0.149162536496481100121... = A001191, the concatenation of the squares. Then a(n) = sum of first n digits of N.

1, 5, 14, 15, 21, 23, 28, 31, 37, 41, 50, 56, 60, 68, 69, 70, 70, 70, 71, 73, 74, 75, 79, 83, 84, 90, 99, 100, 109, 115, 117, 119, 124, 126, 131, 137, 139, 147, 156, 159, 161, 165, 168, 174, 175, 179, 179, 179, 183, 187, 188, 192, 200, 204, 209, 211, 220, 225, 232

Offset: 1

Author

Amarnath Murthy, Jan 08 2002

Keywords

• base
• easy
• nonn

Examples

			a(5) = 1+4+9+1+6 = 21.
		

Formula

a(n) ~ 4.5n (since 0.149162536... = A001191 is 10-normal).

Extensions

Corrected and extended by Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 19 2003

Asymptotic formula from Charles R Greathouse IV, Oct 04 2008