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

Author

Blaine J. Deal, Feb 06 2006

Keywords

• easy
• nonn
• word

Examples

			'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.
		

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.

Crossrefs

Cf. A005606, A052360, A005589.

Programs

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

Extensions

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