Numbers k such that A037276(k) == -1 (mod k).

Terms

a(0) =1a(1) =6a(2) =14a(3) =18a(4) =48a(5) =124a(6) =134a(7) =284a(8) =3135a(9) =4221a(10) =9594a(11) =16468a(12) =34825a(13) =557096a(14) =711676a(15) =746464a(16) =1333334a(17) =2676977a(18) =6514063a(19) =11280468a(20) =16081252a(21) =35401658a(22) =53879547a(23) =133333334a(24) =198485452a(25) =223856659a(26) =1333333334a(27) =2514095219a(28) =2956260256a(29) =3100811124