Find The Number of ways in which letters of the word ENGINEER can be arranged so that no two alike letters are together
35648
How many permutations of the set n={1,2,3,3,3,4,4,5} are possible without any consecutive identical elements?
75942
Arranging 5 D's, 6 E's and 3 F's such that the First D precedes the First E which precedes the First F
107027
Number of combinations and permutations of letters
44540
How many strings contain every letter of the alphabet?
38809
In how many ways can the letters of word $PERMUTATIONS$ be arranged if there are always 4 letters between P and S?
53639
Formula for number of 6 letter words from English alphabet if there is repetion and ordering
73575
Number of pairs of strings satisfying the given condition
24212
proving how many permutations exist.
79881
The Matching Problem/Derangements - n letters to n people
61372
Numbering exceeding the 26 letter alphabet
88410
Enumerate paragraphs and subparagraphs like sections but with letters
155372
Find the number of permutations in $S_n$ containing fixed elements in one cycle
157621
Combinatorics involving picking a specific amount of consonants without repeat and vowels (can repeat)
18243
Number of occurences of letters in a word?
137471
Permutations of a string with duplicate characters
115209
Elementary formula for permutations?
76363
Given a word and a text, we need to return the occurrences of anagrams