A179659 Digital root of the n-th weird number.

7, 8, 7, 7, 1, 1, 2, 8, 4, 1, 1, 7, 8, 5, 2, 7, 5, 1, 2, 7, 1, 4, 5, 1, 2, 8, 4, 1, 2, 8, 5, 2, 7, 4, 5, 1, 8, 7, 8, 4, 5, 4, 1, 8, 4, 5, 2, 4, 1, 7, 8, 5, 7, 8, 1, 8, 4, 2, 7, 4, 5, 2, 4, 5, 1, 2, 5, 7, 8, 1, 2, 8, 2, 7, 7, 4, 2, 8, 5, 1, 7, 5, 2, 8, 4, 1, 7, 8, 4, 7, 5, 1, 2, 5, 8, 5, 1, 4, 5, 2, 4, 2, 4, 2, 4, 1

Offset: 1

Author

Jason G. Wurtzel, Jul 23 2010

Keywords

• nonn
• base

Examples

			The 9th weird number is 10570. 1+0+5+7+0=13, and 1+3=4.
		

Crossrefs

Cf. A006037

Formula

a(n) = A010888(A006037(n)).

Extensions

Extended, keyword:base and formula added - R. J. Mathar, Jul 27 2010