Number of finite edges in the graph formed when every pair of vertices of a row of n adjacent congruent rectangles are joined by an infinite line.

A347751

Number of finite edges in the graph formed when every pair of vertices of a row of n adjacent congruent rectangles are joined by an infinite line.

Terms

    a(0) =0a(1) =8a(2) =36a(3) =124a(4) =300a(5) =664a(6) =1200a(7) =2108a(8) =3388a(9) =5232a(10) =7568a(11) =10852a(12) =14892a(13) =20288a(14) =26704a(15) =34540a(16) =43812a(17) =55400a(18) =68584a(19) =84684a(20) =103004a(21) =124216a(22) =147888a(23) =175820a(24) =206788a(25) =242424a(26) =281560a(27) =325708a(28) =374148a(29) =429416

External references