Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A062738
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A062738 Number of connected labeled relations. +0
5
1, 2, 12, 432, 61344, 32866560, 68307743232, 561981464819712, 18437720675374485504, 2417519433343618432696320, 1267602236528793479228867346432, 2658428102191640176274135259655176192 (list; graph; listen)
OFFSET

0,2

LINKS

T. D. Noe, Table of n, a(n) for n=0..30

FORMULA

E.g.f.: 1+log( Sum_{n >= 0} 2^(n^2)*x^n/n! ).

CROSSREFS

Cf. A003027.

Sequence in context: A012751 A012428 A012786 this_sequence A009510 A091471 A012625

Adjacent sequences: A062735 A062736 A062737 this_sequence A062739 A062740 A062741

KEYWORD

easy,nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)eunet.rs), Jul 12 2001

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 25 20:09 EST 2009. Contains 167514 sequences.


AT&T Labs Research