Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A161161
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A161161 Row differences from Table T(n,k) read along rows: the coefficient [q^k] of the sum_{m=0..n} [n,m]_q over q-Binomial coefficients. ( cf. A083906) +0
2
1, 1, 1, 1, 1, 2, 1, 1, 2, 3, 1, 1, 1, 2, 3, 5, 2, 2, 1, 1, 2, 3, 5, 7, 5, 4, 3, 1, 1, 1, 2, 3, 5, 7, 11, 8, 9, 7, 6, 2, 2, 1, 1, 2, 3, 5, 7, 11, 15, 14, 15, 15, 13, 11, 7, 4, 3, 1, 1, 1, 2, 3, 5, 7, 11, 15, 22, 21, 25, 25, 27, 23, 22, 15, 13, 8, 6, 2, 2, 1, 1, 2, 3, 5, 7, 11, 15, 22, 30, 32, 37, 42, 44 (list; graph; listen)
OFFSET

1,6

COMMENT

Note that the values on each row sum to powers of two. Additionally, column sums of these irregular table are essentially sequence A002865.

EXAMPLE

The differences between 5 3 4 3 1 and 4 2 2 yield row four : 1 1 2 3 1

CROSSREFS

A002865 (column sums) A000079 (row sums)

Sequence in context: A089309 A126387 A038374 this_sequence A136277 A133233 A116361

Adjacent sequences: A161158 A161159 A161160 this_sequence A161162 A161163 A161164

KEYWORD

easy,nonn,tabf,uned

AUTHOR

Alford Arnold (Alford1940(AT)aol.com), Jun 04 2009

page 1

Search completed in 0.004 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 December 17 23:40 EST 2009. Contains 171025 sequences.


AT&T Labs Research