A362440 Aliqout sequence starting at 841.

841, 30, 42, 54, 66, 78, 90, 144, 259, 45, 33, 15, 9, 4, 3, 1, 0

Offset: 1

Author

N. J. A. Sloane, Apr 22 2023

Keywords

• nonn
• fini
• full

Comments

This is 841 followed by A008885. Could be further extended backwards, see A070015.

References

• GCHQ, The GCHQ Puzzle Book, Penguin, 2016. See page 92.

Crossrefs

Cf. A001065, A008885, A070015.

Programs

Mathematica

NestWhileList[DivisorSigma[1,#]-#&,841,#>0&] (* Paolo Xausa, Oct 16 2023 *)