A202269 Right-truncatable triangular numbers: every prefix is triangular number.

1, 3, 6, 10, 15, 36, 66, 105, 153, 666

Offset

1,2

Comments

This sequence is finite with 10 terms.

Links

Table of n, a(n) for n=1..10.

Crossrefs

Cf. A000217 (triangular numbers).

Sequence in context: A230364 A214282 A130200 * A151375 A353217 A310082

Adjacent sequences: A202266 A202267 A202268 * A202270 A202271 A202272

Keyword

nonn,base,fini,full

Author

Jaroslav Krizek, Dec 25 2011

Status

approved