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A241788 Triangular numbers which have one or more occurrences of exactly five different digits. 7
10296, 12403, 13695, 14028, 14365, 14706, 16290, 17205, 19306, 19503, 21736, 21945, 23871, 24310, 24531, 24753, 24976, 27495, 29403, 30628, 30876, 32640, 32896, 34716, 34980, 37128, 37401, 37950, 39621, 40186, 41328, 41905, 42195, 43071, 43956, 46971, 47586 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The first term having a repeated digit is 100576.

LINKS

Colin Barker, Table of n, a(n) for n = 1..1000

PROG

(PARI) s=[]; for(n=0, 500, if(#vecsort(eval(Vec(Str(n*(n+1)/2))), , 8)==5, s=concat(s, n*(n+1)/2))); s

CROSSREFS

Cf. A045914, A062691, A162304, A241787, A241789, A241790, A241791, A241792, A241812.

Cf. A000217.

Sequence in context: A257191 A257184 A254984 * A187937 A154089 A227410

Adjacent sequences:  A241785 A241786 A241787 * A241789 A241790 A241791

KEYWORD

nonn,base

AUTHOR

Colin Barker, Apr 28 2014

STATUS

approved

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Last modified June 17 17:05 EDT 2021. Contains 345085 sequences. (Running on oeis4.)