Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A153281
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
%I A153281
%S A153281 1,2,1,4,2,2,8,4,4,3,16,8,8,6,5,32,16,16,12,10,8,64,32,32,24,20,16,13,
%T A153281 128,64,64,48,40,32,26,21,256,128,128,96,80,64,52,42,34,512,256,256,192,
%U A153281 160,128,104,84,68,55
%N A153281 Triangle read by rows, A130321 * A127647
%C A153281 Row sums = A008466(k-2): (1, 3, 8, 19, 43, 94,...).
%F A153281 Triangle read by rows, A130321 * A127647. A130321 = an infinite lower 
               triangular
%F A153281 matrix with powers of 2: (A000079) in every column: (1, 2, 4, 8,...).
%F A153281 A127647 = an infinite lower triangular matrix with the Fibonacci numbers,
%F A153281 A000045 as the main diagonal and the rest zeros.
%e A153281 First few rows of the triangle =
%e A153281 1;
%e A153281 2, 1;
%e A153281 4, 2, 2;
%e A153281 8, 4, 4, 3;
%e A153281 16, 8, 8, 6, 5;
%e A153281 32, 16, 16, 12, 10, 8;
%e A153281 64, 32, 32, 24, 20, 16, 13;
%e A153281 128, 64, 64, 48, 40, 32, 26, 21;
%e A153281 256, 128, 128, 96, 80, 64, 52, 42, 34;
%e A153281 512, 256, 256, 192, 160, 128, 104, 84, 68, 55;
%e A153281 ...
%e A153281 Row 4 = (16, 8, 8, 6, 5) = termwise products of (16, 8, 4, 2, 1) and 
               (1, 1, 2, 3, 5).
%Y A153281 Cf. A130321, A127647, A008466
%Y A153281 Sequence in context: A086685 A094571 A104733 this_sequence A130584 A078458 
               A033317
%Y A153281 Adjacent sequences: A153278 A153279 A153280 this_sequence A153282 A153283 
               A153284
%K A153281 nonn,tabl
%O A153281 0,2
%A A153281 Gary W. Adamson (qntmpkt(AT)yahoo.com), Dec 23 2008

    
page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


AT&T Labs Research