Sum of distances between leftmost and rightmost peaks in all bargraphs of semiperimeter n.

A277999

Sum of distances between leftmost and rightmost peaks in all bargraphs of semiperimeter n.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =9a(7) =53a(8) =261a(9) =1165a(10) =4887a(11) =19642a(12) =76519a(13) =291095a(14) =1086946a(15) =3998430a(16) =14530223a(17) =52272218a(18) =186467253a(19) =660449671a(20) =2325124444a(21) =8143334776a(22) =28393762841a(23) =98621419068a(24) =341403900888

External references