Irregular triangle in which first row is 1, n-th row (n>1) gives prime factors of n with repetition.
A027746
Irregular triangle in which first row is 1, n-th row (n>1) gives prime factors of n with repetition.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =2a(4) =2a(5) =5a(6) =2a(7) =3a(8) =7a(9) =2a(10) =2a(11) =2a(12) =3a(13) =3a(14) =2a(15) =5a(16) =11a(17) =2a(18) =2a(19) =3a(20) =13a(21) =2a(22) =7a(23) =3a(24) =5a(25) =2a(26) =2a(27) =2a(28) =2a(29) =17
External references
- oeis: A027746