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A358565
a(n) = A358548(n) / 6.
0
1, 1, 1, 1, 2, 1, 1, 1, 2, 2, 1, 2, 1, 1, 3, 1, 2, 3, 1, 1, 2, 1, 5, 1, 1, 2, 1, 1, 1, 2, 2, 3, 1, 5, 1, 1, 4, 1, 2, 3, 2, 2, 1, 2, 1, 2, 2, 2, 1, 2, 6, 1, 1, 3, 1, 1, 3, 4, 1, 1, 1, 3, 1, 3, 3, 4, 3, 2, 4, 2, 2, 1, 2, 3, 1, 3, 1, 4, 3, 2, 1, 1, 3, 1, 1, 5, 1
OFFSET
2,5
COMMENTS
(1/6) * (first differences of consecutive primes of the form 3*k - 1).
PROG
(Python)
from itertools import islice
from sympy import isprime
def A358565_gen(): # generator of terms
p, q = 5, 11
while True:
while not isprime(q):
q += 3
yield (q-p)//6
p = q
q += 3
A358565_list = list(islice(A358565_gen(), 30)) # Chai Wah Wu, Jan 05 2023
CROSSREFS
Sequence in context: A266012 A202111 A187759 * A270645 A350239 A268059
KEYWORD
nonn
AUTHOR
Jordan Gunter, Nov 22 2022
STATUS
approved