A052348 - OEIS

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A052348

Indices of A052343 (ways to write n as sum of two triangular numbers) where record values are reached.

0, 6, 81, 276, 1056, 1381, 6906, 17956, 34531, 40056, 200281, 520731, 1001406, 1482081, 7410406, 19267056, 37052031, 60765331, 303826656, 789949306, 1519133281, 3220562556, 13429138206, 16102812781, 41867313231, 80514063906, 196454315931, 711744324931

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..28.

Kenneth Korbin, Problem 665, The College Mathematics Journal Vol. 30 No. 5, Nov. 1999.

EXAMPLE

a(2) = 6 because 6 = 6 + 0 = 3 + 3. a(3) = 81 because 81 = 3 + 78 = 15 + 66 = 36 + 55.

CROSSREFS

Probably differs from A053587 only at n=1, 2, 4.

Cf. A000217, A052343, A052344, A052345, A052346, A052347.

Sequence in context: A264694 A358037 A002676 * A309902 A196909 A197076