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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A006029 Numbers n such that n-th tetrahedral number n(n+1)(n+2)/6 is palindromic. 1
1, 2, 17, 21, 336 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..5.

P. De Geest, Palindromic Tetrahedrals

CROSSREFS

Cf. A006030.

Sequence in context: A042055 A075683 A157191 * A126961 A106622 A040992

Adjacent sequences:  A006026 A006027 A006028 * A006030 A006031 A006032

KEYWORD

nonn,base

AUTHOR

Patrick De Geest

EXTENSIONS

No more terms to 10^10. Charles R Greathouse IV, Mar 23, 2011

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 September 24 04:14 EDT 2017. Contains 292402 sequences.