|
| |
|
|
A093462
|
|
a(1)=1, a(n)=2[n^(n-1)-1]/(n-1)^2.
|
|
1
| |
|
|
1, 2, 4, 14, 78, 622, 6536, 85598, 1345210, 24691358, 518748492, 12281130094, 323584515590, 9393074239694, 297887000259088, 10248191152060862, 380165561528647410, 15127415638330079806, 642761421592044700820
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
MATHEMATICA
| Insert[Table[2*(n^(n - 1) - 1)/(n - 1)^2, {n, 2, 20}], 1, 1] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Mar 18 2006
|
|
|
CROSSREFS
| Cf. A093460, A093461.
Sequence in context: A192815 A075098 A052856 * A181080 A166894 A032052
Adjacent sequences: A093459 A093460 A093461 * A093463 A093464 A093465
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 05 2004
|
|
|
EXTENSIONS
| Corrected and extended by Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Mar 18 2006
|
| |
|
|
