OFFSET
1,3
COMMENTS
a(34) > 10^13
LINKS
Lior Manor, Table of n, a(n) for n = 1..33
Patrick De Geest, Palindromic Quasipronics of the form n(n+x)
Erich Friedman, What's Special About This Number? (See entries 814, 2067.)
PROG
(Python)
from itertools import count, islice
def ispal(n): s = str(n); return s == s[::-1]
def agen():
for k in count(0):
if ispal(k*(k+5)):
yield k
print(list(islice(agen(), 20))) # Michael S. Branicky, Jan 24 2022
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
a(21)-a(27) from Michael S. Branicky, Jan 24 2022
a(28)-a(31) from Lior Manor, May 05 2024
STATUS
approved