a(1) = 1; for n>1, a(n)= smallest number greater than the previous term such that a(n-1)*a(n) + 1 is a palindrome.

A081941

a(1) = 1; for n>1, a(n)= smallest number greater than the previous term such that a(n-1)*a(n) + 1 is a palindrome.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =7a(4) =14a(5) =23a(6) =32a(7) =45a(8) =153a(9) =167a(10) =352a(11) =3610a(12) =4977a(13) =11332a(14) =27866a(15) =46955a(16) =275824a(17) =508960a(18) =1978100a(19) =5211763a(20) =22579170a(21) =50936903a(22) =98746668a(23) =103408400a(24) =105030502a(25) =106085805a(26) =115059404a(27) =458335581a(28) =2483842510a(29) =4847757902

External references