4-fold convolution of A000302 (powers of 4); expansion of g.f. 1/(1-4*x)^4.
A038846
4-fold convolution of A000302 (powers of 4); expansion of g.f. 1/(1-4*x)^4.
Terms
- a(0) =1a(1) =16a(2) =160a(3) =1280a(4) =8960a(5) =57344a(6) =344064a(7) =1966080a(8) =10813440a(9) =57671680a(10) =299892736a(11) =1526726656a(12) =7633633280a(13) =37580963840a(14) =182536110080a(15) =876173328384
External references
- oeis: A038846