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A006029 Numbers k such that the k-th tetrahedral number k*(k+1)*(k+2)/6 is palindromic. 1
1, 2, 17, 21, 336 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
No more terms to 10^10. - Charles R Greathouse IV, Mar 23 2011
LINKS
Patrick De Geest, Palindromic Tetrahedrals
MATHEMATICA
Select[Range[350], PalindromeQ[(#(#+1)(#+2))/6]&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Apr 02 2018 *)
CROSSREFS
Cf. A006030.
Sequence in context: A340044 A309055 A157191 * A332094 A126961 A106622
KEYWORD
nonn,base,more
AUTHOR
STATUS
approved

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Last modified September 27 10:09 EDT 2023. Contains 365688 sequences. (Running on oeis4.)