A059132 A hierarchical sequence (W2{2}c - see A059126).

4, 10, 4, 16, 4, 10, 4, 22, 4, 10, 4, 16, 4, 10, 4, 28, 4, 10, 4, 16, 4, 10, 4, 22, 4, 10, 4, 16, 4, 10, 4, 34, 4, 10, 4, 16, 4, 10, 4, 22, 4, 10, 4, 16, 4, 10, 4, 28, 4, 10, 4, 16, 4, 10, 4, 22, 4, 10, 4, 16, 4, 10, 4, 40, 4, 10, 4, 16, 4, 10, 4, 22, 4, 10, 4, 16, 4, 10, 4, 28, 4, 10, 4, 16

Offset

0,1

Links

Antti Karttunen, Table of n, a(n) for n = 0..16383

Jonas Wallgren, Hierarchical sequences

Formula

a(n) = 4 + 6*A007814(n+1). a(2n) = 4, a(2n+1) = a(n) + 6. - Ralf Stephan, Oct 09 2003. Typo in the first formula corrected by Antti Karttunen, Nov 01 2018

a(n) = A059126(3*n) + A059126(3*n+1) + A059126(3*n+2). - Sean A. Irvine, Sep 12 2022

Mathematica

Array[6 IntegerExponent[2 #, 2] - 2 &, 105] (* Michael De Vlieger, Nov 02 2018 *)

Prog

(PARI) A059132(n) = if(!(n%2), 4, 6+A059132((n-1)/2)); \\ Antti Karttunen, Nov 01 2018

Crossrefs

Cf. A007814, A059126, A059134, A059137, A059139.

Sequence in context: A291527 A010715 A151707 * A059136 A128505 A336988

Adjacent sequences: A059129 A059130 A059131 * A059133 A059134 A059135

Keyword

easy,nonn

Author

Jonas Wallgren, Jan 19 2001

Status

approved