G.f. is the polynomial (Product_{k=1..31} (1 - x^(3*k)))/(1-x)^31.
A162737
G.f. is the polynomial (Product_{k=1..31} (1 - x^(3*k)))/(1-x)^31.
Terms
- a(0) =1a(1) =31a(2) =496a(3) =5455a(4) =46345a(5) =324136a(6) =1942335a(7) =10249065a(8) =48578364a(9) =209961884a(10) =837318680a(11) =3110233844a(12) =10844253964a(13) =35718892168a(14) =111747443068a(15) =333597393565a(16) =954069339889
External references
- oeis: A162737