OFFSET
1,1
COMMENTS
The number of Brazilian representations of an oblong number m with repdigits of length = 2 is beta'(n) = tau(n)/2 - 2.
This sequence is the second subsequence of A326380: oblong numbers that have exactly two Brazilian representations with three digits or more.
LINKS
EXAMPLE
3906 = 62 * 63 is oblong, tau(3906) = 24, beta(3906) = 12 with beta'(3906) = 10 and beta"(3906) = 2: 3906 = 111111_5 = 666_25 = (42,42)_92 = (31,31)_125 = (21,21)_185 = (18,18)_216 = (14,14)_278 = 99_433 = 77_557 = 66_650 = 33_130 = 22_1952.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Bernard Schott, Jul 10 2019
EXTENSIONS
a(6)-a(25) from Giovanni Resta, Jul 11 2019
STATUS
approved