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Search: id:A117978
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A117978 Triangular numbers with only even digits. +0
1
0, 6, 28, 66, 406, 666, 820, 2080, 2628, 8646, 28680, 42486, 48828, 64620, 66066, 80200, 84666, 200028, 204480, 228826, 264628, 288420, 426426, 446040, 468028, 484620, 600060, 626640, 644680, 686206, 828828, 886466, 2222886, 2248260 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Cf. A000217.

Sequence in context: A033588 A014635 A034955 this_sequence A119174 A144945 A055711

Adjacent sequences: A117975 A117976 A117977 this_sequence A117979 A117980 A117981

KEYWORD

base,nonn

AUTHOR

Luc Stevens (lms022(AT)yahoo.com), May 03 2006

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.


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