A045808 - OEIS

A045808

8-ish numbers (end in 67, 69, 81, 83).

67, 69, 81, 83, 167, 169, 181, 183, 267, 269, 281, 283, 367, 369, 381, 383, 467, 469, 481, 483, 567, 569, 581, 583, 667, 669, 681, 683, 767, 769, 781, 783, 867, 869, 881, 883, 967, 969, 981, 983, 1067, 1069, 1081, 1083, 1167, 1169, 1181, 1183, 1267, 1269

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OFFSET

1,1

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..1000

FORMULA

Empirical G.f.: x*(67+2*x+12*x^2+2*x^3+17*x^4)/(1-x-x^4+x^5). [Colin Barker, Jan 23 2012]

MATHEMATICA

Select[Range[1300], MemberQ[{67, 69, 81, 83}, Mod[#, 100]]&] (* Harvey P. Dale, Jul 03 2013 *)

PROG

(Haskell)

import Data.List (findIndices)