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

0,2

Links

Table of n, a(n) for n=0..90.

J. Wallgren, Hierarchical sequences

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

Crossrefs

Cf. A006519, A059126.

Sequence in context: A193730 A257884 A026204 * A059148 A158451 A257706

Adjacent sequences: A059143 A059144 A059145 * A059147 A059148 A059149

Keyword

easy,nonn

Author

Jonas Wallgren, Feb 01 2001

Status

approved