Structured truncated icosahedral numbers.

Terms

a(0) =1a(1) =60a(2) =282a(3) =772a(4) =1635a(5) =2976a(6) =4900a(7) =7512a(8) =10917a(9) =15220a(10) =20526a(11) =26940a(12) =34567a(13) =43512a(14) =53880a(15) =65776a(16) =79305a(17) =94572a(18) =111682a(19) =130740a(20) =151851a(21) =175120a(22) =200652a(23) =228552a(24) =258925a(25) =291876a(26) =327510a(27) =365932a(28) =407247a(29) =451560