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A210426 Number of 4-divided words of length n over a 4-letter alphabet. 1
0, 0, 0, 1, 44, 450, 3175, 17977, 91326, 433434 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

See A210109 for further information.

Row sums of the following table which shows how many words of length n over a 4-letter alphabet are 4-divided in k>=1 different ways:

1;

38, 4, 2;

253, 104, 66, 15, 3, 8, 0, 1;

1333, 684, 475, 231, 130, 167, 55, 41, 25, 11, 9, 9, 1, 2, 2;

- R. J. Mathar, Mar 25 2012

LINKS

Table of n, a(n) for n=1..10.

CROSSREFS

Cf. A210109.

Sequence in context: A250337 A002613 A094201 * A231242 A221730 A306036

Adjacent sequences:  A210423 A210424 A210425 * A210427 A210428 A210429

KEYWORD

nonn

AUTHOR

R. J. Mathar, Mar 21 2012

STATUS

approved

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Last modified December 11 07:29 EST 2019. Contains 329914 sequences. (Running on oeis4.)