COBBLESTONE :

stone_bricks
mossy_cobblestone
mossy_stone_bricks
stone_stairs
cracked_stone_bricks
andesite_wall
stone_brick_stairs
andesite
mossy_cobblestone_wall
mossy_stone_brick_wall
mossy_stone_brick_stairs
mossy_cobblestone_stairs
cobblestone_stairs
cobblestone_wall
stone_brick_wall
deepslate_tiles
deepslate
deepslate_tile_wall
deepslate_tile_stairs
chiseled_stone_bricks
light_gray_wool
coal_ore

50% COBBLESTONE :

stone_slab
cobblestone_slab
mossy_cobblestone_slab
stone_brick_slab
mossy_stone_brick_slab
deepslate_tile_slab

DIRT :

green_concrete
coarse_dirt
lime_terracotta
rooted_dirt
moss_block

NOTHING :

stone_button
diamond_block
redstone_block
gold_block
spore_blossom
tripwire
lantern
torch
oak_button
moss_carpet
rose_bush
sea_pickle
chain
end_rod
peony
lilac
white_carpet
big_dripleaf_stem
big_dripleaf
potted_cornflower
potted_bamboo
player_head
poppy
allium
ender_chest
blue_orchid
dandelion
rail
grass
tall_grass
oak_leaves
candle
light_gray_carpet
soul_torch
azure_bluet
wither_skeleton_skull
cornflower
lily_of_the_vallet
beacon
obsidian
enchanting_table
blue_wool
red_wool
cyan_wool
pink_wool

OAK PLANKS :

spruce_planks
oak_fence
spruce_fence
oak_trapdoor
stripped_spruce_wood
oak_stairs
spruce_trapdoor
spruce_stairs

50% OAK PLANKS :

oak_slab
spruce_slab
petrified_oak_slab

CUSTOM :

sea_lantern
glowstone
cobweb
iron_ore
white_concrete_powder
light_gray_concrete_powder
blue_concrete_powder
cyan_concrete_powder
red_concrete_powder
pink_concrete_powder
blue_ice
jack_o_lantern
gravel
bookshelf

UNKNOWN PACKAGE :

waxed_cut_copper

How much coins to spend to have 50% chance of 1 specific outcome, on average :
n = log(0.5, 1 - 1 / loot_table_size) / 2 * package_price
Current : 179 = 2 stacks + 51
