|
Search: id:A104127
|
|
|
| A104127 |
|
(n+1-th prime)^(n-th prime). |
|
+0
1
|
|
| 9, 64, 7776, 2097152, 743008370688, 793714773254144, 2185911559738696531968, 5242880000000000000000000, 55572324035428505185378394701824, 6863037736488300000000000000000000000000000
(list; graph; listen)
|
|
|
OFFSET
|
2,1
|
|
|
COMMENT
|
Sum of reciprocals rapidly converges to 1268651887726617214821302614..
|
|
PROGRAM
|
(PARI) ptopp1(n) = { local(x, y, z, sr=0); forprime(x=1, n, y=x^(x+1); z=(x+1)^x; sr+=1./z; print1(z", "); ); print(); print(sr) }
|
|
CROSSREFS
|
Adjacent sequences: A104124 A104125 A104126 this_sequence A104128 A104129 A104130
Sequence in context: A056769 A064546 A067961 this_sequence A043426 A038484 A043021
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Cino Hilliard (hillcino368(AT)gmail.com), Mar 06 2005
|
|
|
Search completed in 0.002 seconds
|
