id:A151689 - OEIS Search Results

Search: id:A151689

Displaying 1-1 of 1 results found.

page 1

a(n) = sum_{k >= 1} 2^wt(k) * binomial(wt(n+k),k).

+0
3

2, 6, 4, 6, 16, 16, 6, 6, 16, 16, 18, 40, 50, 30, 8, 6, 16, 16, 18, 40, 50, 30, 20, 40, 50, 54, 100, 142, 112, 48, 10, 6, 16, 16, 18, 40, 50, 30, 20, 40, 50, 54, 100, 142, 112, 48, 22, 40, 50, 54, 100, 142, 112, 72, 102, 142, 160, 256, 386, 368, 210, 70, 12, 6, 16, 16, 18, 40, 50 (list; graph; listen)

	OFFSET	`0,1`
	MAPLE	`wt := proc(n) local w, m, i;` `w := 0; m := n; while m > 0 do i := m mod 2; w := w+i; m := (m-i)/2; od; w; end:` `f := n->add( 2^k*binomial(wt(n+k), k), k=1..20 );`
	CROSSREFS	`Cf. A151685, A151690.` `Adjacent sequences: A151686 A151687 A151688 this_sequence A151690 A151691 A151692` `Sequence in context: A119250 A059773 A127399 this_sequence A088438 A097265 A074208`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Jun 04 2009`

page 1

Search completed in 0.002 seconds

Last modified November 8 20:39 EST 2009. Contains 166234 sequences.

AT&T Labs Research