Sums of three consecutive hexagonal numbers.

Terms

a(0) =7a(1) =22a(2) =49a(3) =88a(4) =139a(5) =202a(6) =277a(7) =364a(8) =463a(9) =574a(10) =697a(11) =832a(12) =979a(13) =1138a(14) =1309a(15) =1492a(16) =1687a(17) =1894a(18) =2113a(19) =2344a(20) =2587a(21) =2842a(22) =3109a(23) =3388a(24) =3679a(25) =3982a(26) =4297a(27) =4624a(28) =4963a(29) =5314