Wagstaff Number $2617$ can be expressed as $7^4+6^3$.
Is there an Oeis sequence that lists all the numbers that can be expressed as the sum of a Power of six and a Power of seven? Are there other Wagstaff numbers that can be expressed in such a way?
$43$ Is another Wagstaff Number that can be written as $7+6^2$.
$13$ Is surely another Wagstaff which can be expressed as $6+7$