|
Search: id:A022014
|
|
|
| A022014 |
|
Tri-substituted alkanes of form C_n H_{2n-1} X_2 Y, or equivalently bi-substituted alkyles of form -C_n H_{2n-1} X_2 (n=1: CHXXY; n=2: CXXY-CHHH CXYH-CXHH CXXH-CYHH). |
|
+0
1
|
|
| 0, 1, 3, 9, 27, 81, 240, 711, 2094, 6152, 18012, 52613, 153297, 445772, 1293780, 3748820, 10845935, 31336532, 90426198, 260644262, 750502831, 2158961013, 6205225334, 17820505454, 51139664497, 146654181925, 420291420558
(list; graph; listen)
|
|
|
OFFSET
|
0,3
|
|
|
REFERENCES
|
G. Polya, Algebraische Berechnung der Anzahl der Isomeren einiger organischer Verbindungen, Zeit. f. Kristall., 93 (1936), 415-443; line 6 of Table I.
|
|
FORMULA
|
Reference gives g.f.
|
|
CROSSREFS
|
Sequence in context: A006521 A014953 A080557 this_sequence A038002 A133494 A140429
Adjacent sequences: A022011 A022012 A022013 this_sequence A022015 A022016 A022017
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com), Paul.Zimmermann(AT)loria.fr (Paul Zimmermann)
|
|
|
Search completed in 0.002 seconds
|
