Quasi-Carmichael numbers to base -4: squarefree composites n such that prime p|n ==> p+4|n+4.
A029564
Quasi-Carmichael numbers to base -4: squarefree composites n such that prime p|n ==> p+4|n+4.
Terms
- a(0) =1886a(1) =50711a(2) =149171a(3) =222101a(4) =628421a(5) =766931a(6) =1105646a(7) =1778621a(8) =2523902a(9) =5430047a(10) =5836181a(11) =6265805a(12) =9306986a(13) =10671881a(14) =12450371a(15) =21817715a(16) =24953666a(17) =32029934a(18) =34836791a(19) =38697746a(20) =48807671a(21) =55252571a(22) =57264161a(23) =63697721a(24) =69300086a(25) =74157926
External references
- oeis: A029564