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A062935 Palindromes of the form n! + 1. 1
2, 3, 7, 121 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..4.

EXAMPLE

121 = 5! + 1.

PROG

(Python)

A062935_list, n = [], 1

for i in range(1, 10**3):

....n *= i

....s = str(n+1)

....if s == s[::-1]:

........A062935_list.append(n+1) # Chai Wah Wu, Dec 03 2014

CROSSREFS

Sequence in context: A230778 A111870 A182514 * A083436 A088856 A173913

Adjacent sequences:  A062932 A062933 A062934 * A062936 A062937 A062938

KEYWORD

nonn,base

AUTHOR

Amarnath Murthy, Jul 05 2001

EXTENSIONS

Comment from Dean Hickerson, Jul 06 2001: I doubt that there are any more terms, but I see no hope of proving that. If there are any more terms, they're too large to fit.

STATUS

approved

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Last modified June 24 13:17 EDT 2019. Contains 324325 sequences. (Running on oeis4.)