A103155 Each letter appears an even number of times in the English names for 1 through n taken together (names with "and").

42278, 44478, 46678, 47876, 48878, 49896

Offset

1,1

Comments

The English names for numbers 1 through 42278 together contain 83036 a's, 158994 d's, 192398 e's, 41248 f's, 16648 g's, 122564 h's, 82264 i's, 2846 l's, 210108 n's, 83684 o's, 83574 r's, 74594 s's, 173440 t's, 91686 u's, 30508 v's, 27016 w's, 16658 x's and 56098 y's. Each of these counts is even so 42278 is in the sequence.

Links

Table of n, a(n) for n=1..6.

Crossrefs

Sequence in context: A151818 A186604 A345154 * A271749 A031670 A237312

Adjacent sequences: A103152 A103153 A103154 * A103156 A103157 A103158

Keyword

nonn,word

Author

David W. Wilson, Jan 24 2005

Status

approved