A307827 - OEIS

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A307827

Palindromic decagonal (or 10-gonal) numbers.

4

0, 1, 232, 27972, 76867, 25555552, 7154664517, 158229922851, 2028787878202, 2040061600402, 2733623263372, 52667666676625, 675972505279576, 28519896169891582, 73542836563824537, 74529570707592547, 25552469511596425552, 27835145788754153872

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Robert Price, Table of n, a(n) for n = 1..22

P. De Geest, Palindromic nonagonals

MATHEMATICA

Select[PolygonalNumber[10, Range[0, 10^5]], PalindromeQ]

CROSSREFS

Cf. A001107, A082723.

Sequence in context: A156391 A279660 A188401 * A206793 A206970 A206976

Adjacent sequences: A307824 A307825 A307826 * A307828 A307829 A307830

KEYWORD

nonn,base

AUTHOR

Robert Price, Apr 30 2019

STATUS

approved