a(n) is the number of edges formed by n-secting the angles of a heptagon.

Terms

a(0) =7a(1) =28a(2) =161a(3) =196a(4) =91a(5) =441a(6) =973a(7) =973a(8) =1701a(9) =805a(10) =2527a(11) =2485a(12) =3507a(13) =3528a(14) =3171a(15) =4655a(16) =6111a(17) =6020a(18) =7749a(19) =5551a(20) =9219a(21) =9366a(22) =11263a(23) =11312a(24) =10661a(25) =13090a(26) =15631a(27) =15519a(28) =18151a(29) =13307