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From George Gilbert's marks problem: jumping 4 marks at a time (final positions).
1

%I #9 Jun 15 2014 16:39:34

%S 2,4,47,233,477,538,1163,4544,23938,47952,74329,385194,424332,838758,

%T 3601963,8880674,9376182,10177957,10622608,12051969,14306604,23190118,

%U 25373883,28661729,138953419,1150488807,1204511338

%N From George Gilbert's marks problem: jumping 4 marks at a time (final positions).

%D G. T. Gilbert, M. I. Krusemeyer and L. C Larson, The Wohascum Problem Book, Math. Assoc of America, 1993, Problem 103, p. 25; Solution, pp. 163-164.

%Y Cf. A019595.

%K nonn

%O 0,1

%A _R. K. Guy_ (computed by _Marc Paulhus_).