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A098775 Palindromic abundant numbers. 1
66, 88, 222, 252, 272, 282, 414, 444, 464, 474, 606, 616, 636, 666, 696, 828, 858, 868, 888, 2002, 2112, 2442, 2552, 2772, 2992, 4004, 4224, 4554, 4664, 4884, 5775, 6006, 6336, 6666, 6776, 6996, 8008, 8118, 8228, 8448, 8778, 8888, 20202, 20502, 20802 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

EXAMPLE

a(2) = 88 because 88 is the second abundant number which is palindromic also.

MATHEMATICA

Select[Range[20802], PalindromeQ[#] && DivisorSigma[1, #] > 2 * # &] (* Amiram Eldar, Aug 23 2020 *)

CROSSREFS

Intersection of A002113 and A005101.

Sequence in context: A257029 A223734 A031411 * A109759 A194196 A281937

Adjacent sequences:  A098772 A098773 A098774 * A098776 A098777 A098778

KEYWORD

easy,nonn,base

AUTHOR

Shyam Sunder Gupta, Oct 03 2004

STATUS

approved

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Last modified April 17 11:48 EDT 2021. Contains 343064 sequences. (Running on oeis4.)