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A077507 Largest n-digit triangular number beginning with n. 0
1, 28, 378, 4950, 59685, 699153, 7998000, 89987820, 999961560, 1099969156, 11999870821, 129999769851, 1399999074540, 14999999588925, 159999994275696, 1699999973850921, 17999999979109470, 189999999508759300 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..18.

CROSSREFS

Cf. A077506.

Sequence in context: A122732 A010944 A022623 * A130608 A177108 A283637

Adjacent sequences:  A077504 A077505 A077506 * A077508 A077509 A077510

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Nov 08 2002

EXTENSIONS

More terms from Sascha Kurz, Jan 04 2003

STATUS

approved

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Last modified August 18 15:00 EDT 2019. Contains 326106 sequences. (Running on oeis4.)