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A133015
Concatenation of next n positive triangular numbers.
0
1, 36, 101521, 28364555, 667891105120, 136153171190210231, 253276300325351378406, 435465496528561595630666, 7037417808208619039469901035, 1081112811761225127513261378143114851540
OFFSET
1,2
CROSSREFS
Cf. A053067, A053068. Triangular numbers: A000217.
Sequence in context: A053945 A357804 A097573 * A203270 A185960 A334409
KEYWORD
easy,nonn,base
AUTHOR
Omar E. Pol, Oct 19 2007
STATUS
approved