OFFSET
1,2
REFERENCES
GCHQ, The GCHQ Puzzle Book, Penguin, 2016. See Puzzle 31, page 37.
LINKS
Michael S. Branicky, Table of n, a(n) for n = 1..10000
PROG
(Python)
from num2words import num2words as n2w
def ok(n): return n2w(n)[-1] == n2w(n+1)[0]
print([k for k in range(850) if ok(k)]) # Michael S. Branicky, Jun 14 2023
CROSSREFS
KEYWORD
nonn,word
AUTHOR
Sean A. Irvine, Jun 14 2023
STATUS
approved