Smallest positive integer requiring at least n letters (not including hyphens) when spelled out in English.

A045494

Smallest positive integer requiring at least n letters (not including hyphens) when spelled out in English.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =3a(5) =11a(6) =13a(7) =13a(8) =17a(9) =23a(10) =23a(11) =73a(12) =101a(13) =103a(14) =103a(15) =111a(16) =113a(17) =113a(18) =117a(19) =123a(20) =123a(21) =173a(22) =323a(23) =373a(24) =1103a(25) =1103a(26) =1111a(27) =1113a(28) =1113a(29) =1117

External references