Number of 6-element subsets that can be chosen from {1,2,...,6*n} having element sum 18*n+3.

Terms

a(0) =0a(1) =1a(2) =58a(3) =676a(4) =3486a(5) =11963a(6) =32134a(7) =73294a(8) =148718a(9) =276373a(10) =479632a(11) =787986a(12) =1237756a(13) =1872809a(14) =2745266a(15) =3916220a(16) =5456444a(17) =7447107a(18) =9980486a(19) =13160678a(20) =17104314a(21) =21941271a(22) =27815384a(23) =34885162a(24) =43324496a(25) =53323377a(26) =65088604a(27) =78844500a(28) =94833624a(29) =113317483