login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A116131 Numbers n such that n concatenated with n-4 gives the product of two numbers which differ by 6. 5
20, 31, 14564, 38239, 69919, 120395, 426436, 902596, 7478020, 9090220, 6671332084, 8114264059, 8482227259, 9900250996, 2244338786836, 2490577152964, 2509440638591, 2769448208395, 7012067592220 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..19.

EXAMPLE

9900250996//9900250992 = 9950000498 * 9950000504, where // denotes concatenation.

CROSSREFS

Cf. A116125, A116130, A116132, A115429, A116262.

Sequence in context: A077340 A077343 A218793 * A212050 A075035 A032352

Adjacent sequences:  A116128 A116129 A116130 * A116132 A116133 A116134

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 20 18:42 EDT 2021. Contains 345199 sequences. (Running on oeis4.)