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A055726 Number of lucky 2,6 triples <= 10^n. 0
1, 2, 5, 16, 52, 243, 1374 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..6.

CROSSREFS

Sequence in context: A291685 A268571 A001428 * A101500 A339828 A268430

Adjacent sequences:  A055723 A055724 A055725 * A055727 A055728 A055729

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Jun 09 2000

STATUS

approved

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Last modified April 11 00:03 EDT 2021. Contains 342877 sequences. (Running on oeis4.)