A271108 - OEIS

A271108

a(n) is the number of syllables pronounced in reading the sequence up to a(n-1) in American English.

0, 2, 3, 4, 5, 6, 7, 9, 10, 11, 14, 16, 18, 20, 22, 25, 28, 31, 34, 37, 41, 44, 47, 51, 54, 57, 61, 64, 67, 71, 75, 79, 83, 86, 89, 92, 95, 98, 101, 105, 109, 113, 118, 123, 129, 135, 141, 147, 154, 160, 165, 171, 178, 185, 191, 197, 204, 208, 212, 216, 221, 227

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

COMMENTS

For terms a(n>100), the American English pronunciation of the terms are used; e.g., "four hundred fifty", not "four hundred and fifty"; for terms a(n>999999999), short scale is used.

LINKS

Table of n, a(n) for n=0..61.

Wikipedia, Long and short scales

FORMULA

a(0) = 0, a(n) = a(n-1) + S(n), where S(n) is the number of syllables in n.

a(n) = a(n-1) + A075774(n).

PROG

(Python) # uses function in A075774

from itertools import islice

def agen(): # generator of terms

an = 0

while True: