Consider the aliquot parts, in ascending order, of a composite number. Take their sum and repeat the process deleting the minimum number and adding the previous sum. The sequence lists the numbers that after some iterations reach a sum equal to the reverse of themselves.
A247012
Consider the aliquot parts, in ascending order, of a composite number. Take their sum and repeat the process deleting the minimum number and adding the previous sum. The sequence lists the numbers that after some iterations reach a sum equal to the reverse of themselves.
Terms
- a(0) =6a(1) =133a(2) =172a(3) =841a(4) =1005a(5) =1603a(6) =4258a(7) =5299a(8) =192901a(9) =498906a(10) =1633303a(11) =5307589a(12) =16333303a(13) =20671542a(14) =41673714a(15) =42999958a(16) =73687923
External references
- oeis: A247012