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A037133
(nextprime(5^n)-nextprime(2^n))/2.
0
0, 2, 12, 58, 307, 1550, 7781, 39003, 195195, 976315, 4882299, 24413043, 122068292, 610347461, 3051749613, 15258772698, 76293912556, 381469661013, 1907348501745, 9536742901936, 47683715296045, 238418578052990, 1192092893410662, 5960464473344773
OFFSET
0,2
FORMULA
a(n) = A037132(n) / 2. - Sean A. Irvine, Dec 09 2020
MATHEMATICA
Table[(NextPrime[5^n]-NextPrime[2^n])/2, {n, 0, 30}] (* Harvey P. Dale, Apr 14 2023 *)
CROSSREFS
Sequence in context: A285364 A282435 A001758 * A009618 A143770 A062478
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Sean A. Irvine, Dec 09 2020
STATUS
approved