Lower (1/2)-midsequence of Fibonacci numbers (A000045) and tribonacci numbers (A000213); see Comments.

A390348

Lower (1/2)-midsequence of Fibonacci numbers (A000045) and tribonacci numbers (A000213); see Comments.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =2a(4) =4a(5) =7a(6) =12a(7) =22a(8) =39a(9) =69a(10) =124a(11) =222a(12) =398a(13) =717a(14) =1293a(15) =2336a(16) =4230a(17) =7671a(18) =13932a(19) =25340a(20) =46145a(21) =84125a(22) =153520a(23) =280408a(24) =512580a(25) =937653a(26) =1716313a(27) =3143362a(28) =5759816a(29) =10558795

External references