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Sums of two successive terms of A256264.
7

%I #18 Apr 19 2015 22:31:15

%S 1,3,7,11,15,23,35,43,47,55,67,79,95,123,155,171,175,183,195,207,223,

%T 251,283,303,319,347,387,439,503,579,651,683,687,695,707,719,735,763,

%U 795,815,831,859,899,951,1015,1091,1163,1199,1215,1243,1283,1335,1399,1475,1563,1663,1775,1899,2035,2183,2343,2515,2667,2731

%N Sums of two successive terms of A256264.

%C First differs from A139250 (the toothpick sequence) at a(27).

%C It appears that both sequences share infinitely many terms, for example: a(1)..a(26), a(31)..a(42), a(47)..a(50), a(63)..a(74), a(79)..a(82), etc.

%C The main entry for this sequence is A256263.

%F a(n) = A256264(n) + A256264(n-1).

%Y Cf. A007583, A139250, A255747, A256260, A256261, A256263, A256264.

%K nonn

%O 1,2

%A _Omar E. Pol_, Apr 10 2015