A279517 Record values of A156140 (accumulation of Stern's diatomic series).

-1, 0, 1, 3, 7, 8, 13, 17, 18, 21, 30, 35, 37, 47, 58, 59, 70, 73, 87, 94, 113, 121, 134, 139, 166, 189, 211, 221, 251, 259, 271, 304, 339, 389, 410, 419, 461, 474, 479, 553, 621, 640, 705, 740, 741, 835, 856, 868, 899, 991, 996, 1109, 1120, 1264, 1327, 1339

Offset: 1

Author

Charles R Greathouse IV, Dec 13 2016

Keywords

• sign

Links

• Charles R Greathouse IV, Table of n, a(n) for n = 1..512

Crossrefs

Cf. A156140, A279516, A002487, A007814.

Programs

PARI

r=0; v=List([-1,0]); u=["",-1,0]; for(n=2,1e10, u=[u[2],u[3],(2*valuation(n-1, 2)+1)*u[3] - u[2]]; if(u[3]>r, r=u[3]; listput(v,t); print("a("#v") = "t", ")))

Formula

a(n) = A156140(A279516(n)).