A272394 Recurrence (of order 5): 

81*n*(3*n-8)*(3*n-5)*(3*n-2)*(3*n-1)*(9*n-34)*(9*n-25)*(9*n-16)*(9*n-14)*
 (9*n-7)*(9*n-5)*(9*n-4)*(9*n-2)*(9*n-1)*(9*n + 1)*(11*n-46)*(11*n-36)*
 (11*n-35)*(11*n-26)*(11*n-25)*(11*n-24)*(11*n-16)*(11*n-15)*(11*n-14)*(11*n-13)*a(n) = 

10*(2*n-1)*(3*n-8)*(3*n-5)*(9*n-34)*(9*n-25)*(9*n-16)*(9*n-14)*(11*n-46)*
 (11*n-36)*(11*n-35)*(11*n-26)*(11*n-25)*(11*n-24)*
 (31015667237005*n^12-284945273130650*n^11
 + 1170935025106825*n^10-2841769815834510*n^9
 + 4529266892200299*n^8-4985827614758286*n^7
 + 3879644991949787*n^6-2145725913588370*n^5
 + 835226548876196*n^4-222569388652344*n^3
 + 38427183767808*n^2-3846389189760*n
 + 168129561600)*a(n-1)

-4000*(n-1)*(2*n-3)*(2*n-1)*(3*n-8)*(9*n-34)*(9*n-25)*(11*n-46)*(11*n-36)*
 (11*n-35)*(11*n-2)*(10045020643309080*n^15-189653655839712570*n^14
 + 1635400057394716140*n^13-8532794856382340555*n^12
 + 30083665892230737666*n^11-75804503758255791871*n^10
 + 140805348131660326410*n^9-195996606982780123965*n^8
 + 205775128272310690902*n^7-162663032745297777115*n^6
 + 95855290581220537698*n^5-41282249697662817380*n^4
 + 12557316666538351032*n^3-2542989468038788224*n^2
 + 306126509944816512*n-16491151197480960)*a(n-2)

+1200000*(n-2)*(n-1)*(2*n-5)*(2*n-3)*(2*n-1)*(9*n-34)*(9*n-7)*(11*n-46)*
 (11*n-13)*(11*n-3)*(11*n-2)*(145970750132163*n^14-3585647362424193*n^13
 + 39916490178597813*n^12-266451685277244753*n^11
 + 1189169755049486815*n^10-3745495208443349295*n^9
 + 8565047915649047091*n^8-14407422183935356811*n^7
 + 17862035809204657542*n^6-16192207064960955932*n^5
 + 10531975865728602296*n^4-4752280276967234336*n^3
 + 1402849148209665792*n^2-242105850538739712*n
 + 18415960688885760)*a(n-3)

-160000000*(n-3)*(n-2)*(n-1)*(2*n-7)*(2*n-5)*(2*n-3)*(2*n-1)*(3*n-2)*(9*n-16)
 *(9*n-7)*(11*n-24)*(11*n-14)*(11*n-13)*(11*n-4)*(11*n-3)*(11*n-2)*
 (1757534922*n^9-35622910620*n^8
 + 308157371940*n^7-1485495649550*n^6
 + 4369514578606*n^5-8067571914360*n^4
 + 9254110568780*n^3-6277860653665*n^2
 + 2253086858325*n-324638073018)*a(n-4)

+16000000000*(n-4)*(n-3)*(n-2)*(n-1)*(2*n-9)*(2*n-7)*(2*n-5)*(2*n-3)*(2*n-1)*
 (3*n-5)*(3*n-2)*(9*n-25)*(9*n-16)*(9*n-7)*(9*n-5)*(11*n-35)*(11*n-25)*
 (11*n-24)*(11*n-15)*(11*n-14)*(11*n-13)*(11*n-5)*(11*n-4)*(11*n-3)*(11*n-2)*a(n-5)