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A166596 Smallest triangular number with exactly n anagrams that are triangular numbers. 1
0, 120, 4095, 36046, 147153, 219453, 1021735, 1053426, 104653, 10149765, 10294453, 10348975, 100486576, 10725396, 103428153, 20759346, 12347965, 100174935, 129548656, 102968425, 104697685, 102925378 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..46

EXAMPLE

n=1, {0} (triangular number with no nontrivial anagram)

n=2, {120,210} (two anagrams of triangular numbers)

n=3, {4095,4950,9045} (three anagrams of triangular numbers)

n=4, {36046,43660,46360,66430} (four anagrams of triangular numbers)

n=5, {147153,375411,435711,713415,741153}

n=6, {219453,243951,432915,493521,539241,943251}

n=7, {1021735,1710325,2310175,2375110,3201715,5312170,7321051}

n=8, {1053426,1345620,1360425,1405326,1624503,2465310,5643120,6503421}

n=9, {104653,135460,354061,403651,406351,431056,465130,534061,634501}

n=10, {10149765,14609715,15149760,16974051,17461095,17609145,41509716,41591760, 41756091,61710495}.

CROSSREFS

Cf. A034291 Triangular numbers that have some nontrivial permutation of digits which is also triangular.

Sequence in context: A231136 A222003 A139389 * A000514 A179060 A055360

Adjacent sequences:  A166593 A166594 A166595 * A166597 A166598 A166599

KEYWORD

base,nonn

AUTHOR

Zak Seidov, Oct 17 2009

STATUS

approved

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Last modified March 25 07:34 EDT 2017. Contains 284047 sequences.