Number of pairs of rabbits when there are 3 pairs per litter and offspring reach parenthood after 3 gestation periods; a(n) = a(n-1) + 3*a(n-3), with a(0) = a(1) = a(2) = 1.
A084386
Number of pairs of rabbits when there are 3 pairs per litter and offspring reach parenthood after 3 gestation periods; a(n) = a(n-1) + 3*a(n-3), with a(0) = a(1) = a(2) = 1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =7a(5) =10a(6) =22a(7) =43a(8) =73a(9) =139a(10) =268a(11) =487a(12) =904a(13) =1708a(14) =3169a(15) =5881a(16) =11005a(17) =20512a(18) =38155a(19) =71170a(20) =132706a(21) =247171a(22) =460681a(23) =858799a(24) =1600312a(25) =2982355a(26) =5558752a(27) =10359688a(28) =19306753a(29) =35983009
External references
- oeis: A084386