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A330722 Numbers whose base phi representation is symmetrical, ignoring the radix point and leading and trailing zeros. 2
0, 1, 2, 3, 4, 7, 8, 10, 11, 14, 18, 19, 21, 22, 25, 26, 28, 29, 36, 38, 47, 48, 50, 51, 54, 55, 57, 58, 65, 66, 68, 69, 72, 73, 75, 76, 94, 96, 123, 124, 126, 127, 130, 131, 133, 134, 141, 142, 144, 145, 148, 149, 151, 152, 170, 171, 173, 174, 177, 178, 180 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

These are the numbers n such that A130600(n) is palindromic.

LINKS

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Rémy Sigrist, PARI program for A330722

Wikipedia, Golden ratio base

EXAMPLE

The first terms, alongside their base phi representation, are:

n a(n) phi(a(n))

-- ---- -------------

1 0 0

2 1 1

3 2 10.01

4 3 100.01

5 4 101.01

6 7 10000.0001

7 8 10001.0001

8 10 10100.0101

9 11 10101.0101

10 14 100100.001001

PROG

(PARI) See Links section.

CROSSREFS

See A330672 for a stronger variant.

Cf. A130600, A178482.

Sequence in context: A354908 A353857 A353848 * A220969 A207006 A171781

Adjacent sequences: A330719 A330720 A330721 * A330723 A330724 A330725

KEYWORD

nonn,base

AUTHOR

Rémy Sigrist, Apr 23 2020

STATUS

approved

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Last modified January 26 22:13 EST 2023. Contains 359836 sequences. (Running on oeis4.)