Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A087446
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A087446 Numbers that are congruent to {1, 6} mod 15. +0
3
1, 6, 16, 21, 31, 36, 46, 51, 61, 66, 76, 81, 91, 96, 106, 111, 121, 126, 136, 141, 151, 156, 166, 171, 181, 186, 196, 201, 211, 216, 226, 231, 241, 246, 256, 261, 271, 276, 286, 291, 301, 306, 316, 321, 331, 336, 346, 351, 361, 366, 376, 381, 391, 396, 406 (list; graph; listen)
OFFSET

1,2

FORMULA

G.f.: (1+5x+9x^2)/((1+x)(1-x)^2)); E.g.f.: (30x-1)exp(x)/4+5exp(-x)/4; a(n)=(18n-1)/4+5(-1)^n/4.

CROSSREFS

Cf. A001651, A047241, A087444, A087445.

Sequence in context: A104392 A037001 A118139 this_sequence A051808 A034053 A114222

Adjacent sequences: A087443 A087444 A087445 this_sequence A087447 A087448 A087449

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Sep 04 2003

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 21 14:49 EST 2008. Contains 150807 sequences.


AT&T Labs Research