Structured snub dodecahedral numbers.

Terms

a(0) =1a(1) =60a(2) =286a(3) =788a(4) =1675a(5) =3056a(6) =5040a(7) =7736a(8) =11253a(9) =15700a(10) =21186a(11) =27820a(12) =35711a(13) =44968a(14) =55700a(15) =68016a(16) =82025a(17) =97836a(18) =115558a(19) =135300a(20) =157171a(21) =181280a(22) =207736a(23) =236648a(24) =268125a(25) =302276a(26) =339210a(27) =379036a(28) =421863a(29) =467800