A160558 a(n) is the ordinal number of series in which the value of A160348(n) is defined.

0, 1, 1, 2, 3, 2, 2, 4, 2, 5, 6, 4, 7, 8, 5, 8, 9, 4, 10, 11, 8, 12, 13, 8, 12, 14, 4, 15, 16, 11, 8, 17, 12, 11, 18, 8, 19, 20, 14, 21, 22, 15, 20, 23, 11, 8, 24, 17, 25

Offset: 0

Author

Vladimir Shevelev, May 19 2009

Keywords

• nonn
• uned

Comments

a(n)>=a((f(2n+1)-1)/2), where f is defined as in A159885. E.g., for n=4, we have a(4)=3>a(((9*3+1)/4-1)/2)=a(3)=2.

Examples

			Put a(0)=0. According to example to A160348, in the first series we find A160348(1) and A160348(2), therefore a(1)=a(2)=1. In the second series we find A160348(3), A160348(5), A160348(6) and A160348(8), thus a(3)=a(5)=a(6)=a(8)=2.
		

Crossrefs

Cf A160348 A160322 A160266 A160267 A259667 A159945 A160198 A006519 A122458.