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A307645 Numbers that are the sum of a positive triangular number and a positive cube. 0
2, 4, 7, 9, 11, 14, 16, 18, 22, 23, 28, 29, 30, 33, 36, 37, 42, 44, 46, 48, 53, 55, 56, 63, 65, 67, 70, 72, 74, 79, 82, 85, 86, 92, 93, 99, 100, 105, 106, 109, 113, 118, 119, 121, 126, 128, 130, 131, 132, 135, 137, 140, 142, 144, 146, 147, 153, 154, 155, 161, 163, 169, 170, 172, 179 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..65.

FORMULA

Exponents in expansion of (Sum_{i>=1} x^(i*(i+1)/2)) * (Sum_{j>=1} x^(j^3)).

CROSSREFS

Cf. A000217, A000578, A014133, A014155, A133254.

Sequence in context: A329842 A054406 A292647 * A287235 A190004 A182761

Adjacent sequences:  A307642 A307643 A307644 * A307646 A307647 A307648

KEYWORD

nonn

AUTHOR

Ilya Gutkovskiy, Apr 19 2019

STATUS

approved

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Last modified August 11 23:45 EDT 2020. Contains 336434 sequences. (Running on oeis4.)