A239556 - OEIS

A239556

Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-6,...,6}.

%I #4 Mar 26 2014 16:11:29

%S 1,1,1,2,4,8,16,31,60,117,228,441,860,1678,3267,6368,12413,24192,

%T 47158,91929,179190,349306,680925,1327341,2587450,5043845,9832184,

%U 19166364,37361945,72831417,141973854,276756612,539495115,1051664254,2050060645,3996283405

%N Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-6,...,6}.

%H Alois P. Heinz, <a href="/A239556/b239556.txt">Table of n, a(n) for n = 0..1000</a>

%Y Column k=6 of A239550.

%K nonn

%O 0,4

%A _Alois P. Heinz_, Mar 21 2014