List of numbers that are both pentagonal (A000326) and binomial coefficients C(n,4) (A000332).

Terms

a(0) =0a(1) =1a(2) =5a(3) =35a(4) =70a(5) =210a(6) =330a(7) =715a(8) =1001a(9) =1820a(10) =2380a(11) =3876a(12) =4845a(13) =7315a(14) =8855a(15) =12650a(16) =14950a(17) =20475a(18) =23751a(19) =31465a(20) =35960a(21) =46376a(22) =52360a(23) =66045a(24) =73815a(25) =91390a(26) =101270a(27) =123410a(28) =135751a(29) =163185