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A068134 Index of the smallest triangular number with digit sum = n-th triangular number. 0
1, 2, 3, 7, 12, 56, 109, 368, 1332, 5656, 28248, 140547, 774325, 8485151, 34339452, 397492132, 3996973827, 63229707890, 1039037824132 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..19.

CROSSREFS

Cf. A068133.

Sequence in context: A275311 A056294 A084423 * A249051 A225093 A278007

Adjacent sequences:  A068131 A068132 A068133 * A068135 A068136 A068137

KEYWORD

base,more,nonn

AUTHOR

Amarnath Murthy, Feb 21 2002

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Jun 17 2002

a(18), a(19) from Max Alekseyev, Jun 19 2011

STATUS

approved

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Last modified July 18 01:05 EDT 2019. Contains 325109 sequences. (Running on oeis4.)