a(n) is the smallest number whose English name has the letter "t" in the n-th position, or -1 if no such number exists.
A164792
a(n) is the smallest number whose English name has the letter "t" in the n-th position, or -1 if no such number exists.
Terms
- a(0) =2a(1) =-1a(2) =-1a(3) =15a(4) =8a(5) =17a(6) =22a(7) =72a(8) =13000a(9) =48a(10) =28a(11) =78a(12) =302a(13) =115a(14) =108a(15) =117a(16) =122a(17) =172a(18) =322a(19) =148a(20) =128a(21) =178a(22) =328a(23) =378a(24) =1115a(25) =1108a(26) =1117a(27) =1122a(28) =1172a(29) =1322
External references
- oeis: A164792