Number of graph minors of the n-centipede graph.

Terms

a(0) =3a(1) =11a(2) =33a(3) =95a(4) =268a(5) =767a(6) =2196a(7) =6347a(8) =18392a(9) =53465a(10) =155437a(11) =451938a(12) =1312136a(13) =3803893a(14) =11005162a(15) =31774289a(16) =91539282a(17) =263158830a(18) =754942580a(19) =2161397128a(20) =6176051375a(21) =17615054467a(22) =50152259705a(23) =142550610355a(24) =404534021375