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A048260 The sum of 2 (not necessarily distinct) abundant numbers. 4
24, 30, 32, 36, 38, 40, 42, 44, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

20161 is the largest number not in this sequence.

REFERENCES

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

LINKS

Table of n, a(n) for n=1..60.

Index entries for linear recurrences with constant coefficients, signature (2,-1).

FORMULA

a(n) = n + 1456 if n > 18705. - Charles R Greathouse IV, Feb 21 2017

EXAMPLE

12 is abundant, so 12+12=24 is in the sequence.

MATHEMATICA

LinearRecurrence[{2, -1}, {24, 30, 32, 36, 38, 40, 42, 44, 48, 50}, 60] (* Harvey P. Dale, Jun 28 2021 *)

CROSSREFS

Cf. A005101. Complement of A048242.

Sequence in context: A058228 A093455 A080564 * A333946 A337933 A114635

Adjacent sequences:  A048257 A048258 A048259 * A048261 A048262 A048263

KEYWORD

nonn,easy

AUTHOR

Jud McCranie

STATUS

approved

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Last modified October 21 15:14 EDT 2021. Contains 348155 sequences. (Running on oeis4.)