a(n) appears in the congruences modulo 4 or 32 of Markoff numbers m(n) = A002559(n) for odd or even m(n).

A309376

a(n) appears in the congruences modulo 4 or 32 of Markoff numbers m(n) = A002559(n) for odd or even m(n).

Terms

    a(0) =0a(1) =0a(2) =1a(3) =3a(4) =7a(5) =1a(6) =22a(7) =42a(8) =6a(9) =58a(10) =108a(11) =19a(12) =246a(13) =331a(14) =399a(15) =724a(16) =1045a(17) =1435a(18) =202a(19) =1890a(20) =2269a(21) =342a(22) =3675a(23) =7164a(24) =8365a(25) =1177a(26) =10815a(27) =12910a(28) =1944a(29) =18756

External references