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A077506 Smallest n-digit triangular number beginning with n. 1
1, 21, 300, 4005, 50086, 600060, 7003153, 80004925, 900003951, 1000006281, 11000078650, 120000270151, 1300001532378, 14000004645256, 150000007349286, 1600000000287153, 17000000065300605, 180000000300000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..19.

CROSSREFS

Sequence in context: A295377 A021604 A025935 * A007592 A019664 A019839

Adjacent sequences:  A077503 A077504 A077505 * A077507 A077508 A077509

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 October 16 13:51 EDT 2019. Contains 328093 sequences. (Running on oeis4.)