What would be the 77th term of the sequence 1,1,1,1,1,5,5,5,5,5,10,10,10,10,10,..... ?

Question

Can we make a formula for nth term of this sequence without the help of modular arithmetic and floor operation ?

Answer 1

every 5th term is 1,5,10, 15, 20, 25, ...

5th is 1

2x5 is 5

3x5 =2x5=10

4x5 =3x5 =15

nx5 =(n-1)5 = 5n-5

5nth term =5n-5

15x5=75= 14x5=70

75th term =70

76th through 79th terms are all 75

77th term is 75