The numbered Sheiko programs are each specific training blocks that can be combined to achieve different training effects. According to PowerliftingToWin, #29 is a preparatory block, #30 is an accumulation block, #31 is a transmutation block, and #32 is a realization/peaking block. You can see these training blocks referenced in the 3 Day under 80kg and 3 day over 80kg programs on Lift Vault.