A279517 - OEIS

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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,4

LINKS

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

FORMULA

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

PROG

(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", ")))

CROSSREFS

Cf. A156140, A279516, A002487, A007814.

Sequence in context: A108873 A002312 A252496 * A106474 A127441 A067064

Adjacent sequences: A279514 A279515 A279516 * A279518 A279519 A279520

KEYWORD

sign

AUTHOR

Charles R Greathouse IV, Dec 13 2016

STATUS

approved