A059146 A hierarchical sequence (W'2{2} - see A059126).

1, 2, 1, 4, 8, 4, 1, 2, 1, 16, 32, 16, 1, 2, 1, 4, 8, 4, 1, 2, 1, 64, 128, 64, 1, 2, 1, 4, 8, 4, 1, 2, 1, 16, 32, 16, 1, 2, 1, 4, 8, 4, 1, 2, 1, 256, 512, 256, 1, 2, 1, 4, 8, 4, 1, 2, 1, 16, 32, 16, 1, 2, 1, 4, 8, 4, 1, 2, 1, 64, 128, 64, 1, 2, 1, 4, 8, 4, 1, 2, 1, 16, 32, 16, 1, 2, 1, 4, 8, 4, 1

Offset: 0

Author

Jonas Wallgren, Feb 01 2001

Keywords

• easy
• nonn

Links

• J. Wallgren, Hierarchical sequences

Crossrefs

Cf. A006519, A059126.

Formula

a(3*n) = a(3*n+2) = A006519(n)^2, a(3*n+1) = 2*a(3*n). - Sean A. Irvine, Sep 13 2022