login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A331626 Lexicographically earliest sequence of distinct positive terms such that a(n), a(n+1) and a(n) + a(n+1) have no digit in common. 2
1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 14, 25, 18, 26, 17, 23, 44, 12, 33, 15, 24, 31, 27, 13, 42, 16, 28, 19, 36, 21, 34, 52, 37, 29, 35, 41, 38, 54, 32, 45, 62, 39, 46, 51, 47, 53, 48, 55, 43, 56, 73, 49, 57, 63, 58, 64, 59, 68, 72, 66, 75, 69, 82, 65, 74, 88, 67, 83, 76, 133, 87, 113, 89, 77, 84, 79, 85 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Carole Dubois, Table of n, a(n) for n = 1..550

EXAMPLE

a(1) = 1, a(2) = 2 and their sum 3 have no digit in common;

a(2) = 2, a(3) = 3 and their sum 5 have no digit in common;

a(3) = 3, a(4) = 4 and their sum 7 have no digit in common;

...

a(9) = 9, a(10) = 11 and their sum 20 have no digit in common;

a(10) = 11, a(6) = 22 and their sum 33 have no digit in common;

a(11) = 22, a(7) = 14 and their sum 36 have no digit in common; etc.

CROSSREFS

Cf. A331604 (the three terms have at least one digit in common)

Sequence in context: A352463 A326402 A127204 * A102235 A107272 A039228

Adjacent sequences:  A331623 A331624 A331625 * A331627 A331628 A331629

KEYWORD

base,nonn

AUTHOR

Carole Dubois and Eric Angelini, Jan 23 2020

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 25 21:44 EDT 2022. Contains 354852 sequences. (Running on oeis4.)