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A362449
Number of length-n American English expressions for positive integers (spaces, hyphens, and commas excluded).
1
0, 0, 0, 4, 3, 6, 6, 3, 13, 22, 35, 32, 36, 89, 158, 342, 586, 913, 1490, 2365, 3884, 5940, 8629, 12386, 17637, 26311
OFFSET
0,4
COMMENTS
Limited to numbers < 10^306.
This entry is simply a copy of A121064 with a(4) changed from 4 to 3. See that entry for further information. The present version matches the problem in the GCHQ Puzzle Book.
REFERENCES
GCHQ, The GCHQ Puzzle Book, Penguin, 2016. See page 123, Problem 6.
CROSSREFS
Cf. A121064.
Sequence in context: A224715 A062302 A261723 * A021233 A352922 A290612
KEYWORD
nonn,word,more,fini
AUTHOR
N. J. A. Sloane, Apr 23 2023, based on A121064.
STATUS
approved