A231075 Primes with a prime number of letters (A005589) in their (American) English name.

2, 3, 7, 23, 37, 79, 83, 97, 101, 131, 149, 181, 191, 269, 281, 307, 337, 379, 383, 397, 419, 461, 541, 577, 601, 617, 631, 659, 691, 727, 733, 787, 797, 823, 827, 883, 887, 911, 919, 941, 977, 1013, 1019, 1051, 1061, 1129, 1151, 1153, 1163, 1171

Offset: 1

Author

M. F. Hasler, Nov 03 2013

Keywords

• nonn
• word

Comments

Spaces and hyphens don't count, as in A005589. See A163648 and A231073 for the analogs counting syllables resp. words.

Sequence A072686 is the British English analog, which in particular uses the additional "and": It features "one hundred and nine", but not "one hundred and one". In the present sequence, we do have "one hundred one" but not "one hundred nine".

Links

• Index entries for sequences related to number of letters in n

Programs

PARI

is(p)=isprime(A005589(p))&&isprime(p)

PARI

forprime(p=1,1200,isprime(A005589(p))&&print1(p","))