1,1
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Index entries for sequences related to number of letters in n
Sequence in context: A011471 A085676 A036793 this_sequence A020719 A162787 A023388
Adjacent sequences: A006966 A006967 A006968 this_sequence A006970 A006971 A006972
nonn,word
N. J. A. Sloane (njas(AT)research.att.com), Simon Plouffe (simon.plouffe(AT)gmail.com)
Nombres de lettres des nombres ordinaux en francais.
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