A157902 a(n) is the smallest number greater than a(n-1) whose name in UK English contains n consonants.

1, 2, 3, 12, 13, 22, 23, 300, 1001, 1002, 1003, 1012, 1013, 1022, 1023, 1102, 1103, 1112, 1113, 1122, 1123, 1223, 1323, 2323, 3323, 12323, 13323, 22323, 23323, 101223, 101323, 102323, 103323, 112323, 113323, 122323, 123323, 223323, 323323, 1113323, 1122323, 1123323, 1223323, 1323323

Offset

1,2

Comments

In UK English, "1001" is written as "one thousand and one".

oNe = 1, TWo = 2, THRee = 3, TWeLVe = 4, THiRTeeN = 5, TWeNTyTWo = 6, TWeNTyTHRee = 7, 300 = THRee HuNDReD = 8, oNe THouSaND aND oNe = 9, oNe THouSaND aND TWo = 10, oNe THouSaND aND THRee = 11, oNe THouSaND aND TWeLVe = 12.

Links

Table of n, a(n) for n=1..44.

Wiktionary, one hundred one (US)

Wiktionary, one hundred and one (UK)

Prog

(Python)
from num2words import num2words
from itertools import count, islice
def c(n): return sum(1 for c in num2words(n) if c in "bcdfghjklmnpqrstvwxz")
def agen():
    n, adict = 1, dict()
    for k in count(1):
        v = c(k)
        if v == n: yield k; n += 1
print(list(islice(agen(), 39))) # Michael S. Branicky, Aug 09 2022

Crossrefs

Sequence in context: A239017 A157899 A157900 * A102660 A081347 A309176

Adjacent sequences: A157899 A157900 A157901 * A157903 A157904 A157905

Keyword

nonn,word

Author

Rodolfo Kurchan, Mar 08 2009

Extensions

Edited by Jon E. Schoenfield, Oct 06 2018

a(16) and beyond from Michael S. Branicky, Aug 09 2022

Status

approved