a(1)=1; a(n+1) is the smallest palindrome not already in the sequence such that the product of a(n+1) and a(n) is also a palindrome.
A332661
a(1)=1; a(n+1) is the smallest palindrome not already in the sequence such that the product of a(n+1) and a(n) is also a palindrome.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =11a(4) =4a(5) =22a(6) =101a(7) =5a(8) =111a(9) =6a(10) =1001a(11) =7a(12) =88a(13) =77a(14) =8a(15) =1111a(16) =9a(17) =10001a(18) =33a(19) =121a(20) =131a(21) =202a(22) =44a(23) =2002a(24) =141a(25) =212a(26) =1221a(27) =303a(28) =2112a(29) =222
External references
- oeis: A332661