Numbers obtained from the tribonacci triangle formed by the number of connection points in the paths obtained by Pell walk on the square grid.

A378943

Numbers obtained from the tribonacci triangle formed by the number of connection points in the paths obtained by Pell walk on the square grid.

Terms

    a(0) =2a(1) =3a(2) =7a(3) =13a(4) =25a(5) =46a(6) =86a(7) =158a(8) =292a(9) =537a(10) =989a(11) =1819a(12) =3347a(13) =6156a(14) =11324a(15) =20828a(16) =38310a(17) =70463a(18) =129603a(19) =238377a(20) =438445a(21) =806426a(22) =1483250a(23) =2728122a(24) =5017800a(25) =9229173a(26) =16975097a(27) =31222071a(28) =57426343a(29) =105623512

External references