A014388 a(2n-1) = n+2, a(2n) = smallest number requiring n+2 letters in English.

3, 1, 4, 4, 5, 3, 6, 11, 7, 15, 8, 13, 9, 17, 10, 24, 11, 23, 12, 73, 13, 3000, 14, 11000, 15, 15000, 16, 101, 17, 104, 18, 103, 19, 111, 20, 115, 21, 113, 22, 117, 23, 124, 24, 123, 25, 173, 26, 323, 27, 373, 28, 1104, 29, 1103, 30, 1111, 31

Offset

1,1

Comments

Uses number forms containing "and"; that is, "one hundred and one" rather than "one hundred one". - Sean A. Irvine, Oct 20 2018

Links

Table of n, a(n) for n=1..57.

Crossrefs

Cf. A000916, A001166, A014388, A045494, A045495.

Sequence in context: A376782 A141300 A260502 * A186693 A117374 A202142

Adjacent sequences: A014385 A014386 A014387 * A014389 A014390 A014391

Keyword

nonn,word,easy

Author

Jacques Haubrich (jhaubrich(AT)freeler.nl)

Extensions

More terms from Sean A. Irvine, Oct 20 2018

Status

approved