A025502 Number of terms in Zeckendorf representation of 10^n.

1, 2, 3, 2, 6, 9, 5, 9, 13, 14, 16, 11, 15, 21, 20, 18, 21, 26, 27, 23, 24, 25, 28, 35, 33, 35, 34, 31, 40, 35, 42, 40, 43, 44, 45, 50, 51, 44, 53, 51, 57, 58, 63, 53, 54, 65, 61, 65, 64, 67, 64, 69, 63, 77, 66, 75, 81, 80, 79, 79, 78, 77, 77, 79, 82, 97, 91, 90, 100, 91, 91, 91, 102

Offset

0,2

Links

Chai Wah Wu, Table of n, a(n) for n = 0..10000

Prog

(Python)
def A025502(n):
    m, tlist, s = 10**n, [1, 2], 0
    while tlist[-1]+tlist[-2] <= m:
        tlist.append(tlist[-1]+tlist[-2])
    for d in tlist[::-1]:
        if d <= m:
            s += 1
            m -= d
    return s # Chai Wah Wu, Jun 14 2018

Crossrefs

Cf. A007895.

Sequence in context: A209582 A158279 A153984 * A110777 A087454 A059446

Adjacent sequences: A025499 A025500 A025501 * A025503 A025504 A025505

Keyword

nonn

Author

Clark Kimberling

Status

approved