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a(n) = a(n-1) + rotate(a(n-1), n-2 digits right) with a(1) = 1.
3

%I #17 Aug 17 2024 13:44:31

%S 1,2,4,8,16,32,55,110,121,332,664,1130,2431,4862,7348,12221,24442,

%T 46886,133354,266708,1093378,2027159,4054318,12459749,37057240,

%U 74114480,81525928,110341187,220682374,642750611,759178117,876937295,1606524988,10422590237,20845180474,62929698521,84558995506

%N a(n) = a(n-1) + rotate(a(n-1), n-2 digits right) with a(1) = 1.

%e a(12) = a(11) + rotate(a(11), 11) = 1130 + rotate(1130, 11) = 1130 + 1301 = 2431.

%t a[1] = 1; a[n_] := a[n] = a[n - 1] + FromDigits@RotateRight[IntegerDigits[a[n - 1]], n - 2]; arr = a[#] & /@ Range[0, 100]

%Y Cf. A001127, A051300, A051299, A374732, A374733, A374734.

%K nonn,base,easy

%O 1,2

%A _Nicholas M. R. Frieler_, Jul 17 2024