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A083134
Number the letters of English alphabet from 1 to 26; sequence specifies capital letters which are indistinguishable after 180-degree rotation.
3
8, 9, 14, 15, 19, 24, 26
OFFSET
1,1
CROSSREFS
KEYWORD
word,nonn,fini,full
AUTHOR
Croft Warn (c_warn2000(AT)yahoo.com), Jun 03 2003
STATUS
approved