OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
FORMULA
{k: 2*tau(k) = 3*tau(k+1)}.
MATHEMATICA
Select[Range[1100], 2*DivisorSigma[0, #]==3*DivisorSigma[0, #+1]&] (* Harvey P. Dale, Nov 06 2012 *)
PROG
(PARI) is(n) = 2 * numdiv(n) == 3 * numdiv(n+1); \\ Amiram Eldar, Apr 09 2024
CROSSREFS
KEYWORD
nonn
AUTHOR
Juri-Stepan Gerasimov, Nov 21 2010
EXTENSIONS
Corrected by D. S. McNeil, Nov 21 2010
STATUS
approved