Numbers m such that DivisorSigma(8*k-4, m) mod m = 0 holds presumably for all k; that is, (8*k-4)-power-sums of divisors of m are divisible by m for all k.

A066291

Numbers m such that DivisorSigma(8*k-4, m) mod m = 0 holds presumably for all k; that is, (8*k-4)-power-sums of divisors of m are divisible by m for all k.

Terms

    a(0) =1a(1) =34a(2) =492a(3) =5617a(4) =11234a(5) =22468a(6) =67404a(7) =190978a(8) =709937a(9) =763912a(10) =1419874a(11) =2839748a(12) =5073996a(13) =5446841a(14) =7914353a(15) =8519244a(16) =10893682a(17) =11548552a(18) =15828706a(19) =17126233a(20) =21787364a(21) =31657412a(22) =34252466a(23) =43574728a(24) =57928121a(25) =63314824a(26) =65362092a(27) =68504932a(28) =73084632a(29) =94972236

External references