a(n) is the least positive integer that has exactly n anagrams that are semiprimes, or -1 if there is no such integer.
A362499
a(n) is the least positive integer that has exactly n anagrams that are semiprimes, or -1 if there is no such integer.
Terms
- a(0) =1a(1) =4a(2) =15a(3) =123a(4) =129a(5) =134a(6) =178a(7) =1025a(8) =1148a(9) =1147a(10) =1137a(11) =1145a(12) =1349a(13) =1348a(14) =1357a(15) =10145a(16) =3589a(17) =10258a(18) =10137a(19) =10123a(20) =11269a(21) =10289a(22) =10268a(23) =10247a(24) =10235a(25) =10267a(26) =10234a(27) =10789a(28) =10279a(29) =11378
External references
- oeis: A362499