A267551 Lucas numbers written backwards.

2, 1, 3, 4, 7, 11, 81, 92, 74, 67, 321, 991, 223, 125, 348, 4631, 7022, 1753, 8775, 9439, 72151, 67442, 30693, 97046, 286301, 167761, 344172, 402934, 746017, 1589411, 8940681, 9430103, 7480784, 6911887, 34025721, 93233602, 28258333, 12581045, 30830478

Offset: 0

Author

Vincenzo Librandi, Jan 17 2016

Keywords

• nonn
• base
• easy

Examples

			81 is in the sequence because 7 + 11 = 18, which is 81 written backwards.
		

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..1000

Crossrefs

Cf. A000032, A004086, A004091, A140463.

Programs

Magma

[Seqint(Reverse(Intseq(Lucas(n)))): n in [0..50]];

Mathematica

FromDigits[Reverse[IntegerDigits[#]]]&/@LucasL[Range[0, 50]]

PARI

a(n) = eval(concat(Vecrev(Str(fibonacci(n+1)+fibonacci(n-1))))); \\ Altug Alkan, Jan 17 2016

Formula

a(n) = A004086(A000032(n)).