Triangle read by rows: TR(m,n) is the Wiener index of the hexagonal trapezium T(m,n), defined in the He et al. reference (1 <= n <= m).

A248095

Triangle read by rows: TR(m,n) is the Wiener index of the hexagonal trapezium T(m,n), defined in the He et al. reference (1 <= n <= m).

Terms

    a(0) =27a(1) =109a(2) =210a(3) =279a(4) =566a(5) =822a(6) =569a(7) =1182a(8) =1816a(9) =2328a(10) =1011a(11) =2130a(12) =3370a(13) =4540a(14) =5433a(15) =1637a(16) =3482a(17) =5612a(18) =7772a(19) =9707a(20) =11130a(21) =2479a(22) =5310a(23) =8670a(24) =12224a(25) =15653a(26) =18622a(27) =20748a(28) =3569a(29) =7686

External references