Rearrange the digits in ⟨1263045⟩ to meet the rules below.
⟨6th 5th 4th 3rd 2nd 1st 0th⟩
✅Match
⟨ ⁵ᵗʰd ³ʳᵈa ¹ˢᵗc ⁰ᵗʰb ⟩, a > b > c > d
⟨? ⋯ 1 ⋯ (?−2) ⋯⟩ (?≠3)
⟦0,4⟧ ∋ 3
⟨⋯ 1 ⋯ 2 ⋯ 3 ⋯⟩
⛔Avoid
⟨? ⋯ 1 (?−6) ⋯ 0 ⋯⟩
0 ∾ 3 ∾ 6
⟨⋯ Perm(0,6) ⋯⟩
----- Information -----
🔲 「⟨ ⁵ᵗʰd ³ʳᵈa ¹ˢᵗc ⁰ᵗʰb ⟩, a > b > c > d」
210 permutations match this pattern.
Examples: ⟨5016234⟩, ⟨3026415⟩, ⟨6024513⟩.
🔲 「⟨? ⋯ 1 ⋯ (?−2) ⋯⟩ (?≠3)」
?, 1, (?−2) are three different numbers.
1440 permutations match this pattern.
Examples: ⟨4035162⟩, ⟨4503126⟩, ⟨5130642⟩.
🔲 「⟦0,4⟧ ∋ 3」
The closed interval given by 0 and 4 contains 3.
1680 permutations match this pattern.
Examples: ⟨6013254⟩, ⟨6013542⟩, ⟨4361205⟩.
🔲 「⟨⋯ 1 ⋯ 2 ⋯ 3 ⋯⟩」
840 permutations match this pattern.
Examples: ⟨4126305⟩, ⟨1462035⟩, ⟨4015623⟩.
🔳 「⟨? ⋯ 1 (?−6) ⋯ 0 ⋯⟩」
?, 1, (?−6) are three different numbers.
120 permutations match this pattern.
Examples: ⟨6254103⟩, ⟨6253410⟩, ⟨6510324⟩.
🔳 「0 ∾ 3 ∾ 6」
0,3,6 are in the same cycle.
A permutation can be decomposed into cycles. For example, ⟨125034⟩ has two cycles: (135) and (420), as (1st→3, 3rd→5, 5th→1) and (4th→2, 2nd→0, 0th→4).
1680 permutations match this pattern.
Examples: ⟨3125604⟩, ⟨2051463⟩, ⟨5432061⟩.
🔳 「⟨⋯ Perm(0,6) ⋯⟩」
0,6 are adjacent.
1440 permutations match this pattern.
Examples: ⟨2351064⟩, ⟨5241063⟩, ⟨4135260⟩.
#125034_v2.3