A050604 Column 3 of A050600: a(n) = add1c(n,3).

1, 3, 2, 2, 1, 4, 3, 3, 1, 3, 2, 2, 1, 5, 4, 4, 1, 3, 2, 2, 1, 4, 3, 3, 1, 3, 2, 2, 1, 6, 5, 5, 1, 3, 2, 2, 1, 4, 3, 3, 1, 3, 2, 2, 1, 5, 4, 4, 1, 3, 2, 2, 1, 4, 3, 3, 1, 3, 2, 2, 1, 7, 6, 6, 1, 3, 2, 2, 1, 4, 3, 3, 1, 3, 2, 2, 1, 5, 4, 4, 1

Offset: 0

Author

Antti Karttunen, Jun 22 1999

Keywords

• nonn

Comments

Image of A001511 under the map x -> {1,x+2,x+1,x+1}. - Charlie Neder, Feb 25 2019

Crossrefs

Cf. A050600, A001511.

Programs

PARI

A050604(n)=if((n=divrem(n,4))[2],valuation(n[1]+1,2)+2+(n[2]<2),1) \\ M. F. Hasler, Feb 25 2019

Formula

a(4n) = 1, a(4n+1)-2 = a(4n+2)-1 = a(4n+3)-1 = A001511(n) for all n >= 0. - M. F. Hasler, Feb 25 2019