1,1

Algorithm: 1# factorize n; 2# arrange prime-factors by decreasing size; 3# concatenate prime factors and interpret the result as decimal number.Iterate 1#, 2#, 3#.

n=213 gives {213,713,3123,3473,15123,713},

n=323 gives {323,1917,713,3123,3473,15123,713}

n=639 gives {639,713,3123,3473,15123,713}

Cf. A084317-A084319, A085308, A085309.

Sequence in context: A079794 A138568 A092126 this_sequence A092127 A082967 A092796

Adjacent sequences: A085306 A085307 A085308 this_sequence A085310 A085311 A085312

base,nonn

Labos E. (labos(AT)ana.sote.hu), Jun 27 2003