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A072363 Composite numbers whose sum of divisors is palindromic. 0
4, 81, 96, 98, 130, 146, 162, 166, 201, 205, 208, 221, 244, 274, 300, 314, 325, 333, 365, 388, 422, 438, 489, 519, 559, 633, 685, 793, 803 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..29.

EXAMPLE

a(2)=81: sum of divisors of 81=1+3+9+27+81=121, which is a palindrome.

CROSSREFS

Sequence in context: A116189 A159063 A258981 * A272884 A053901 A017006

Adjacent sequences:  A072360 A072361 A072362 * A072364 A072365 A072366

KEYWORD

base,nonn

AUTHOR

Shyam Sunder Gupta, Jul 18 2002

STATUS

approved

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Last modified August 18 07:11 EDT 2019. Contains 326072 sequences. (Running on oeis4.)