|
| |
|
|
A129701
|
|
Difference between successive primes cubed: a(n) = (P(n+1))^3 - (P(n))^3.
|
|
3
| |
|
|
19, 98, 218, 988, 866, 2716, 1946, 5308, 12222, 5402, 20862, 18268, 10586, 24316, 45054, 56502, 21602, 73782, 57148, 31106, 104022, 78748, 133182, 207704, 117628, 62426, 132316, 69986, 147868, 605486, 199708, 323262, 114266, 622330, 135002
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
EXAMPLE
| a(3) because the fourth prime is 7, cubed 343, the third prime is 5,cubed 125, 343-125=218
|
|
|
MAPLE
| last:=8; for i from 3 to 30 do > while isprime(i)=false do > i:=i + 1; > end do; > r:= i^3 - last; > last:=i^3; > end do;
|
|
|
MATHEMATICA
| Table[Prime[n + 1]^3 - Prime[n]^3, {n, 1, 50}] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Jun 05 2007
|
|
|
CROSSREFS
| Sequence in context: A142170 A069593 A086120 * A044270 A044651 A142216
Adjacent sequences: A129698 A129699 A129700 * A129702 A129703 A129704
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Ben Thurston (benthurston27(AT)yahoo.com), Jun 01 2007
|
|
|
EXTENSIONS
| More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Jun 05 2007
|
| |
|
|
