login
A037127
a(n) = nextprime(3^n) - 2^n.
0
1, 3, 7, 21, 67, 219, 669, 2075, 6307, 19175, 58027, 175119, 527361, 1586139, 4766587, 14316141, 42981211, 129009125, 387158355, 1161737235, 3485735833, 10458256107, 31376865309, 94134790251, 282412759267, 847255055025, 2541798719467, 7625463267275
OFFSET
0,2
FORMULA
a(n) = A151800(A000244(n)) - A000079(n). - Alois P. Heinz, Dec 09 2020
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Sean A. Irvine, Dec 09 2020
STATUS
approved