Number of nonnegative integer arrays of length n+9 with new values 0 upwards introduced in order, no three adjacent elements all unequal, and containing the value 5.
A211845
Number of nonnegative integer arrays of length n+9 with new values 0 upwards introduced in order, no three adjacent elements all unequal, and containing the value 5.
Terms
- a(0) =1a(1) =11a(2) =82a(3) =494a(4) =2619a(5) =12713a(6) =57913a(7) =251481a(8) =1052383a(9) =4277451a(10) =16986189a(11) =66202629a(12) =254144210a(13) =963755936a(14) =3618833405a(15) =13481785125a(16) =49915401836a(17) =183932105682a(18) =675399816338
External references
- oeis: A211845