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@echo off
for /l %%# in (1 1 99999) do call :Collatz %%#
exit
:Collatz
set "X=%1" & set "out="
:loop
(
    set "out=%out%%X%,"
    if %X% equ 1 echo,%out%1 & echo, & exit /b
    set /a "t = (X & 1) << 31 >> 31, X = t & (X << 1) + X + 1 | ~t & X >> 1"
    goto :loop
)
exit /b
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