login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A054984 Composite numbers x such that Sigma[ x+6! ]=Sigma[ x+720 ]=Sigma[ x ]+720. 0
427, 553, 595, 623, 737, 871, 913, 923, 1199, 1207, 1241, 1507, 1582, 1817, 1848, 2193, 2226, 2337, 2398, 2407, 2553, 2561, 2728, 2758, 2929, 3016, 3115, 3248, 3346, 3502, 3503, 3598, 3705, 3762, 4171, 4293, 4343, 4462, 4587, 4633, 4841, 4867, 4984 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See also A015914, A054799, A033560

LINKS

Table of n, a(n) for n=1..43.

EXAMPLE

a(2)=553, Sigma[553]+720=640+720=1360=Sigma[553+720]=Sigma[1273]=1+19+67+1273.

CROSSREFS

A015914-A015917, A054799.

Sequence in context: A173374 A227484 A272131 * A251147 A095811 A235217

Adjacent sequences:  A054981 A054982 A054983 * A054985 A054986 A054987

KEYWORD

nonn

AUTHOR

Labos Elemer, May 29 2000

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 18 01:08 EST 2018. Contains 317279 sequences. (Running on oeis4.)