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A202269
Right-truncatable triangular numbers: every prefix is triangular number.
1
1, 3, 6, 10, 15, 36, 66, 105, 153, 666
OFFSET
1,2
COMMENTS
This sequence is finite with 10 terms.
CROSSREFS
Cf. A000217 (triangular numbers).
Sequence in context: A230364 A214282 A130200 * A151375 A353217 A310082
KEYWORD
nonn,base,fini,full
AUTHOR
Jaroslav Krizek, Dec 25 2011
STATUS
approved