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A095864 Largest n-digit triangular number. 6
6, 91, 990, 9870, 99681, 998991, 9997156, 99991011, 999961560, 9999878910, 99999957291, 999999911791, 9999997965180, 99999998250180, 999999997764120, 9999999895728690, 99999999552805215, 999999998765257141 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Triangular number with index given by A095863.

FORMULA

a(n) = A068093(n+1) - A068092(n+1).

CROSSREFS

Cf. A068092, A068093, A068094, A095863, A095865, A095866.

Sequence in context: A000680 A013297 A077370 * A006151 A005327 A171910

Adjacent sequences:  A095861 A095862 A095863 * A095865 A095866 A095867

KEYWORD

base,easy,nonn

AUTHOR

Ray Chandler (rayjchandler(AT)sbcglobal.net), Jun 28 2004

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Last modified February 15 05:45 EST 2012. Contains 205694 sequences.