3-parking triangle T(r, i, 3) read by rows: T(r, i, k) = (r + 1)^(i-1)*binomial(k*(r + 1) + r - i - 1, r - i) with k = 3 and 0 <= i <= r.
A329059
3-parking triangle T(r, i, 3) read by rows: T(r, i, k) = (r + 1)^(i-1)*binomial(k*(r + 1) + r - i - 1, r - i) with k = 3 and 0 <= i <= r.
Terms
- a(0) =1a(1) =3a(2) =1a(3) =15a(4) =9a(5) =3a(6) =91a(7) =78a(8) =48a(9) =16a(10) =612a(11) =680a(12) =600a(13) =375a(14) =125a(15) =4389a(16) =5985a(17) =6840a(18) =6156a(19) =3888a(20) =1296a(21) =32890a(22) =53130a(23) =74382a(24) =86779a(25) =79233a(26) =50421a(27) =16807a(28) =254475a(29) =475020
External references
- oeis: A329059