Numbers k such that the sum of the squares of the odd divisors of k (A050999) is divisible by k.
A355543
Numbers k such that the sum of the squares of the odd divisors of k (A050999) is divisible by k.
Terms
- a(0) =1a(1) =65a(2) =130a(3) =175a(4) =260a(5) =350a(6) =525a(7) =1050a(8) =1105a(9) =2100a(10) =2210a(11) =4420a(12) =5425a(13) =8840a(14) =10850a(15) =16275a(16) =20737a(17) =21700a(18) =30225a(19) =32045a(20) =32550a(21) =41474a(22) =60450a(23) =64090a(24) =65100a(25) =70525a(26) =82948a(27) =86025a(28) =103685a(29) =120900
External references
- oeis: A355543