A059158 A hierarchical sequence (S(W'3{2,2}cc) - see A059126).

24, 432, 7008, 112320, 1797504, 28760832, 460174848, 7362800640, 117804816384, 1884877074432, 30158033215488, 482528531496960, 7720456504049664, 123527304064991232, 1976436865040252928, 31622989840644833280, 505967837450318905344, 8095485399205105631232

Offset

0,1

Links

Table of n, a(n) for n=0..17.

Index entries for linear recurrences with constant coefficients, signature (18, -32).

Formula

a(n) = (24/7) * (8*16^n - 2^n) (conjectured). - Ralf Stephan, May 05 2004

Conjectures from Colin Barker, Oct 07 2015: (Start)

a(n) = 18*a(n-1) - 32*a(n-2) for n > 1.

G.f.: 24 / ((2*x-1)*(16*x-1)).

(End)

Crossrefs

Cf. A059126.

Sequence in context: A209448 A264504 A081128 * A062149 A231318 A083195

Adjacent sequences: A059155 A059156 A059157 * A059159 A059160 A059161

Keyword

nonn

Author

Jonas Wallgren, Feb 02 2001

Extensions

More terms from Sean A. Irvine, Sep 13 2022

Status

approved