A079718 Perfect numbers read digit-by-digit.

6, 2, 8, 4, 9, 6, 8, 1, 2, 8, 3, 3, 5, 5, 0, 3, 3, 6, 8, 5, 8, 9, 8, 6, 9, 0, 5, 6, 1, 3, 7, 4, 3, 8, 6, 9, 1, 3, 2, 8, 2, 3, 0, 5, 8, 4, 3, 0, 0, 8, 1, 3, 9, 9, 5, 2, 1, 2, 8, 2, 6, 5, 8, 4, 5, 5, 9, 9, 1, 5, 6, 9, 8, 3, 1, 7, 4, 4, 6, 5, 4, 6, 9, 2, 6, 1, 5, 9, 5, 3, 8, 4, 2, 1, 7, 6, 1, 9, 1, 5, 6, 1, 9, 4, 2

Offset: 1

Author

Michael Joseph Halm, Feb 17 2003

Keywords

• nonn
• base
• less
• changed

Examples

			E.g., a(10)= 8 because 8 = 10th digit in the perfect number sequence (A000396): 6, 28, 496, 8128, ...
		

Links

• M. J. Halm, Sequences

Crossrefs

Cf. A007376, A000396.

Programs

Mathematica

Flatten[IntegerDigits[PerfectNumber[Range[10]]]] (* Paolo Xausa, Aug 25 2025 *)

Formula

Digitally expand perfect numbers so that each digit becomes a term in the new sequence.