Linear recurrence sequence with infrequent pseudoprimes, a(n) = -a(n-1) + a(n-2) - a(n-3) + a(n-5), with initial terms (5, -1, 3, -7, 11).
A225984
Linear recurrence sequence with infrequent pseudoprimes, a(n) = -a(n-1) + a(n-2) - a(n-3) + a(n-5), with initial terms (5, -1, 3, -7, 11).
Terms
- a(0) =5a(1) =-1a(2) =3a(3) =-7a(4) =11a(5) =-16a(6) =33a(7) =-57a(8) =99a(9) =-178a(10) =318a(11) =-562a(12) =1001a(13) =-1782a(14) =3167a(15) =-5632a(16) =10019a(17) =-17817a(18) =31686a(19) =-56355a(20) =100226a(21) =-178248a(22) =317012a(23) =-563800a(24) =1002705a(25) =-1783291a(26) =3171548a(27) =-5640532a(28) =10031571a(29) =-17840946
External references
- oeis: A225984