1/24 of product of three numbers: n-th prime, previous and following number.

Terms

a(0) =1a(1) =5a(2) =14a(3) =55a(4) =91a(5) =204a(6) =285a(7) =506a(8) =1015a(9) =1240a(10) =2109a(11) =2870a(12) =3311a(13) =4324a(14) =6201a(15) =8555a(16) =9455a(17) =12529a(18) =14910a(19) =16206a(20) =20540a(21) =23821a(22) =29370a(23) =38024a(24) =42925a(25) =45526a(26) =51039a(27) =53955a(28) =60116a(29) =85344