A186426 Antidiagonal sums of A177517.

1, 0, 1, 0, 1, 1, 1, 2, 3, 4, 6, 10, 15, 23, 36, 57, 90, 142, 225, 358, 571, 912, 1458, 2334, 3742, 6006, 9648, 15510, 24951, 40164, 64689, 104241, 168048, 271015, 437221, 705571, 1138934, 1838916, 2969746, 4796900, 7749561, 12521629, 20235080, 32704173, 52862781, 85455587, 138156111, 223375201, 361186480, 584058718, 944511360, 1527499074, 2470446924, 3995662918, 6462775233, 10453566628, 16909223601, 27352387053, 44246403940, 71576559073

Offset

1,8

Comments

a(n+1)/a(n) tends to the golden ratio. Grows more slowly than the Fibonacci sequence. More complicated than the Fibonacci sequence.

a(n)=First differences of A186425.

Links

Table of n, a(n) for n=1..60.

Crossrefs

Cf. A001622, A177517, A186425.

Sequence in context: A221993 A221994 A222021 * A018062 A222121 A221995

Adjacent sequences: A186423 A186424 A186425 * A186427 A186428 A186429

Keyword

nonn

Author

Mats Granvik, Feb 21 2011

Status

approved