Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A074864
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A074864 a(n)=a(n-1)+a(n-2)+R[a(n-3)]+R[a(n-4)] where a(0)=a(1)=a(2)=a(3)=1 and R(n) (A004086) is the reverse of n. +0
1
1, 1, 1, 1, 4, 7, 13, 25, 49, 112, 244, 502, 1051, 2206, 3904, 7816, 19243, 37174, 66697, 144349, 292510, 563698, 1879315, 3401746, 6192718, 15630610, 33434152, 63708721, 106919440, 197375245, 342218854, 597294436, 1527006682, 3125687152 (list; graph; listen)
OFFSET

1,5

CROSSREFS

Cf. A000288.

Adjacent sequences: A074861 A074862 A074863 this_sequence A074865 A074866 A074867

Sequence in context: A074863 A118334 A004119 this_sequence A074865 A072683 A122552

KEYWORD

easy,base,nonn

AUTHOR

Felice Russo (felice.russo(AT)katamail.com), Sep 11 2002

EXTENSIONS

More terms from Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), May 08 2006

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 May 11 10:28 EDT 2008. Contains 139662 sequences.


AT&T Labs Research