Numbers with easy multiplication table - the first 9 multiples of these numbers can be derived by either incrementing or decrementing the corresponding digits from the previous multiple.
A359925
Numbers with easy multiplication table - the first 9 multiples of these numbers can be derived by either incrementing or decrementing the corresponding digits from the previous multiple.
Terms
- a(0) =1a(1) =9a(2) =11a(3) =89a(4) =91a(5) =109a(6) =111a(7) =889a(8) =891a(9) =909a(10) =911a(11) =1089a(12) =1091a(13) =1109a(14) =1111a(15) =8889a(16) =8891a(17) =8909a(18) =8911a(19) =9089a(20) =9091a(21) =9109a(22) =9111a(23) =10889a(24) =10891a(25) =10909a(26) =10911a(27) =11089a(28) =11091a(29) =11109
External references
- oeis: A359925