A139282 Form a sequence of words as follows: look to the left, towards the beginning of the sequence and write down the number of vowels you see; repeat; then replace the words with the corresponding numbers.

0, 2, 3, 5, 7, 9, 11, 14, 18, 22, 24, 27, 30, 31, 34, 37, 40, 41, 44, 47, 50, 51, 54, 57, 60, 61, 64, 67, 70, 72, 75, 79, 83, 87, 91, 95, 99, 103, 110, 116, 124, 132, 139, 147, 155, 163, 171, 180, 187, 196, 204, 210, 215, 222, 228, 235, 242, 248, 255, 262, 268, 275

Offset: 0

Author

N. J. A. Sloane, Jun 08 2008

Keywords

• nonn
• word
• easy

Comments

The sequence of words is: zero, two, three, five, seven, nine, eleven, fourteen, ...

Hyphens and spaces are not counted.

Examples

			The second word is "two" (and so a(2)=2), because at the end of the first word we can see two vowels (the vowels in "zero") to the left.
		

References

• E. Angelini, "Jeux de suites", in Dossier Pour La Science, pp. 32-35, Volume 59 (Jeux math'), April/June 2008, Paris.

Crossrefs

For a French version see A139212.

Extensions

Cross reference corrected by Sean A. Irvine, Mar 15 2010

More terms from Sean A. Irvine, Mar 15 2010