Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A048242
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A048242 Numbers that are not the sum of two abundant numbers (not necessarily distinct). +0
2
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 31, 33, 34, 35, 37, 39, 41, 43, 45, 46, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109 (list; graph; listen)
OFFSET

1,2

COMMENT

a(1456) = 20161 is the last term.

REFERENCES

The Penguin Dictionary of Curious and Interesting Numbers, David Wells, entry 20161.

Lure of the Integers, Joe Roberts, integer 20161.

Problem 13, ABACUS.

LINKS

T. D. Noe, Table of n, a(n) for n=1..1456 (complete sequence)

EXAMPLE

12 is abundant, so 24=12+12 is not a term.

CROSSREFS

Cf. A005101.

Adjacent sequences: A048239 A048240 A048241 this_sequence A048243 A048244 A048245

Sequence in context: A135381 A135382 A064598 this_sequence A132264 A004830 A081330

KEYWORD

fini,nonn

AUTHOR

Jud McCranie (j.mccranie(AT)comcast.net)

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified October 6 16:13 EDT 2008. Contains 144667 sequences.


AT&T Labs Research