OFFSET
1,2
COMMENTS
Most terms of A350090 are odd. It is conjectured by Klaus Purath that all odd numbers appear in A350090.
a(n) is the least k such that tau(3*k*(k+1)+1) = 2*n. - Jinyuan Wang, Dec 19 2021
a(11) >= 10^8 if it exists. - Michel Marcus, Dec 20 2021
PROG
(PARI) a(n) = my(k=1, m=2*n); while (numdiv(3*k*(k+1)+1) != m, k++); k; \\ Michel Marcus, Dec 20 2021
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Michel Marcus, Dec 15 2021
EXTENSIONS
a(11)-a(23) from Klaus Purath, Jan 04 2022
STATUS
approved