OFFSET
3,1
LINKS
Yasutoshi Kohmoto, UnitaryPhi, SeqFan list, Aug-Sep 2018.
FORMULA
a(2n) = A318842(n).
PROG
(PARI) \\ uses the "solve_uphi pari code", see A318842 links
a(n) = {my(lim = 1, v); while (1, v = solve_uphi(n-2, n, lim); if (#v, return (v[1])); lim *= 10; ); }
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Michel Marcus, Sep 17 2018
STATUS
approved