Logo

A127980 formatted as a simple table:

n a(n)
1 1
2 5
3 14
4 37
5 90
6 213
7 490
8 1109
9 2474
10 5461
11 11946
12 25941
13 55978
14 120149
15 256682
16 546133
17 1157802
18 2446677
19 5155498
20 10835285
21 22719146
22 47535445
23 99265194
24 206918997
25 430615210
26 894784853
27 1856678570
28 3847574869
29 7963585194

[1,5,14,37,90,213,490,1109,2474,5461,11946,25941,
 55978,120149,256682,546133,1157802,2446677,
 5155498,10835285,22719146,47535445,99265194,
 206918997,430615210,894784853,1856678570,
 3847574869,7963585194]

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 December 13 23:45 EST 2009. Contains 170824 sequences.


AT&T Labs Research