[seqfan] Vertically symmetric numbers.
Tanya Khovanova
mathoflove-seqfan at yahoo.com
Sun Feb 14 21:31:35 CET 2010
Dear SeqFans,
The following sequence has an unclear name. I would like to rename it. Any suggestions? Centrally symmetric numbers? Rotationally symmetric numbers?
A053701 Vertically symmetric numbers.
0, 1, 8, 11, 25, 52, 88, 101, 111, 181, 205, 215, 285, 502, 512, 582, 808, 818, 888, 1001, 1111, 1251, 1521, 1881, 2005, 2115, 2255, 2525, 2885, 5002, 5112, 5252, 5522, 5882, 8008, 8118, 8258, 8528, 8888, 10001, 10101, 10801,
COMMENT
2 and 5 taken as mirror images (as on calculator displays)
Tanya
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