OFFSET
1,2
COMMENTS
The sequence with >= in place of > is essentially the same after the first three terms: 1, 3, 7, 11, 17, 23, 31, ...
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
EXAMPLE
The smallest prime above 1+2 is 5, so a(2)=5.
The smallest prime above 5+3 is 11, so a(3)=11.
MAPLE
R:= 1: p:= 1:
for n from 2 to 100 do
p:= nextprime(p+n);
R:= R, p;
od:
R; # Robert Israel, Nov 20 2023
MATHEMATICA
a[1] = 1; a[n_] := a[n] = NextPrime[a[n - 1] + n]; Array[a, 50] (* Amiram Eldar, Feb 03 2022 *)
PROG
(Python)
from sympy import nextprime
p = 1
for i in range(2, 1000):
print(p, end=", ")
p = nextprime(p+i)
(PARI) lista(nn) = my(list = List(), last = 1); listput(list, last); for (n=2, nn, last = nextprime(last + n +1); listput(list, last); ); Vec(list); \\ Michel Marcus, Feb 03 2022
CROSSREFS
KEYWORD
nonn
AUTHOR
Alex Ratushnyak, Feb 02 2022
STATUS
approved