A114332 English spelling of n ends with a(n)-th letter of the alphabet.

15, 5, 15, 5, 18, 5, 24, 14, 20, 5, 14, 14, 5, 14, 14, 14, 14, 14, 14, 14, 25, 5, 15, 5, 18, 5, 24, 14, 20, 5, 25, 5, 15, 5, 18, 5, 24, 14, 20, 5, 25, 5, 15, 5, 18, 5, 24, 14, 20, 5, 25, 5, 15, 5, 18, 5, 24, 14, 20, 5, 25, 5, 15, 5, 18, 5, 24, 14, 20, 5, 25, 5, 15, 5, 18, 5, 24, 14, 20, 5

Offset

0,1

Links

Tanar Ulric, Table of n, a(n) for n = 0..10000

B. Deal, Blaine's Puzzle Blog.

Chuck Gaydos, Sequence puzzle posting at Clifford Pickover forum.

Example

'One' ends with 'e', which is the 5th letter of the alphabet, hence a(1)=5.
'Two' ends with 'o', which is the 15th letter of the alphabet, hence a(2)=15.

Prog

(Python)
def a(n):
    if n == 0: return 15 # zerO
    if n%1000000 == 0: return 14 # millioN, billioN, ...
    r = n%100
    if r == 0: return 4 # hundreD, thousanD
    if r == 12: return 5 # twelvE
    if 10 <= r < 20: return 14 # teN, eleveN, thirteeN, ..., nineteeN
    return [25, 5, 15, 5, 18, 5, 24, 14, 20, 5][n%10] # *Y, *onE, ..., *ninE
print([a(n) for n in range(101)]) # Michael S. Branicky, Jan 19 2022

Crossrefs

Cf. A005606, A052360, A005589.

Sequence in context: A332843 A196187 A004480 * A051998 A131611 A166209

Adjacent sequences: A114329 A114330 A114331 * A114333 A114334 A114335

Keyword

easy,nonn,word

Author

Blaine J. Deal, Feb 06 2006

Extensions

a(0)=15 prepended by Tanar Ulric, Jan 20 2022

Status

approved