Aronson's sequence:
1, 4, 11, 16, 24, 29, 33, 35, 39, 45, 47, 51, 56, 58, 62, 64, ...
whose definition is:
T is the first, fourth, eleventh, ... letter of this sentence

0, 0, 0, 0, 4, 9, 5, 1, 1, 0, 55, 55, 1, 0, 1, 9, 5, 1, 1, 0, ...
这个比较强：把1,2,3,4,5, ...写成英文
one, two, three, four, five, six, seven, eigth, nine, ten
然后删掉除c,d,i,l,m,v,x以外的字母，变成罗马数字。

Golomb's sequence:
1,2,2,3,3,4,4,4,5,5,5,6,6,6,6,7,7,7,7,8,8,8,8,9,9,9,9,9,10,10,10,10,10 ...
定义：a(1)=1, a(n)表示n在这个数列里出现的次数

Emirps:
13, 17, 31, 37, 71, 73, 79, 97, 107, 113, 149, 157, 167, 179, 199, ...
就是一个Prime（质数）倒过来写也是质数

'Eban' numbers (the letter 'e' is banned!).
2, 4, 6, 30, 32, 34, 36, 40, 42, 44, 46, 50, 52, 54, 56, 60, 62, 64, 66, 2000, 2002, 2004, 2006, 2030, 2032, 2034, 2036, 2040, ...