login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A254941 Number of length n 1..(2+1) arrays with every leading partial sum divisible by 2, 3, 5, 7 or 11 1
2, 6, 18, 54, 148, 342, 705, 1326, 2326, 4173, 8361, 18604, 41296, 85118, 169747, 352477, 758153, 1594105, 3165858, 5975091, 11145201, 21712333, 45705877, 102683622, 237061239, 543357180, 1209463533, 2598223818, 5445429743 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A254947

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..3....3....3....2....2....2....2....2....2....2....2....3....3....3....3....3

..2....3....3....1....2....1....3....3....2....1....1....2....1....3....3....1

..3....2....3....3....1....2....1....2....3....1....2....1....2....2....1....1

..2....3....1....2....3....2....3....2....1....3....3....3....2....1....3....3

CROSSREFS

Sequence in context: A132790 A214799 A072850 * A182899 A160175 A072852

Adjacent sequences:  A254938 A254939 A254940 * A254942 A254943 A254944

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 10 2015

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 4 15:25 EDT 2020. Contains 335448 sequences. (Running on oeis4.)