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Number the letters of English alphabet from 1 to 26; sequence specifies capital letters with left-right symmetry.
3

%I #4 Jul 27 2021 20:33:47

%S 1,8,9,13,15,20,21,22,23,24,25

%N Number the letters of English alphabet from 1 to 26; sequence specifies capital letters with left-right symmetry.

%Y Cf. A083132, A083133, A083134.

%K word,nonn,fini,full

%O 1,2

%A Croft Warn (c_warn2000(AT)yahoo.com), Jun 03 2003