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A123058 Number of different quartets of 4 differents bemirps of n digits. 0
0, 0, 0, 0, 1, 1, 1, 2, 9, 29, 60, 221, 749, 2560, 9432, 35685 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,8

LINKS

Table of n, a(n) for n=0..15.

EXAMPLE

1061 1091 1901 1601 are a quartet of 4 different bemirps and there is no other different quartet of 4 digits, so a(4)=1

CROSSREFS

Sequence in context: A338436 A041877 A090208 * A212272 A062452 A265440

Adjacent sequences: A123055 A123056 A123057 * A123059 A123060 A123061

KEYWORD

base,nonn

AUTHOR

Pierre CAMI, Sep 26 2006

STATUS

approved

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Last modified December 2 11:37 EST 2022. Contains 358493 sequences. (Running on oeis4.)