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A061584 a(1) = 1, a(n)= number obtained by replacing each digit of a(n-1) with six times its value. 4
1, 6, 36, 1836, 6481836, 3624486481836, 1836122424483624486481836, 64818366121224122424481836122424483624486481836, 362448648183636612612122461212241224244864818366121224122424481836122424483624486481836 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) contains all of a(n-1) as its least significant digits.

LINKS

John Cerkan, Table of n, a(n) for n = 1..13

PROG

(Python)

def A061584_first(n):

    an = "1"

    a061584 = []

    while n > 1:

        a061584.append(int(an))

        newan = ""

        for i in an:

            newan += str(6*int(i))

        an = newan

        n -= 1

    a061584.append(int(an))

    return a061584 # John Cerkan, May 25 2018

CROSSREFS

Cf. A061581, A061582, A061583, A061585, A061586, A061587, A061533.

Sequence in context: A203106 A069031 A061234 * A197191 A208655 A202781

Adjacent sequences:  A061581 A061582 A061583 * A061585 A061586 A061587

KEYWORD

nonn,base,easy

AUTHOR

Amarnath Murthy, May 13 2001

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org) and Asher Natan Auel (auela(AT)reed.edu), May 15 2001

STATUS

approved

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Last modified July 24 20:26 EDT 2021. Contains 346273 sequences. (Running on oeis4.)