A347731 Number of compositions (ordered partitions) of n into at most 3 triangular numbers.

1, 1, 1, 2, 2, 3, 2, 5, 3, 3, 7, 2, 7, 5, 6, 4, 7, 9, 3, 12, 1, 9, 11, 6, 8, 8, 9, 8, 13, 2, 11, 13, 12, 6, 11, 9, 6, 20, 5, 14, 12, 9, 12, 11, 12, 11, 16, 9, 11, 20, 6, 10, 27, 6, 12, 9, 12, 20, 17, 15, 8, 23, 9, 13, 14, 11, 21, 23, 9, 8, 23, 15, 18, 17, 12, 15

Offset

0,4

Links

Table of n, a(n) for n=0..75.

Crossrefs

Cf. A000217, A023361, A053604, A347730, A347732, A347733, A347734.

Sequence in context: A025478 A084371 A025476 * A331532 A078773 A151663

Adjacent sequences: A347728 A347729 A347730 * A347732 A347733 A347734

Keyword

nonn

Author

Ilya Gutkovskiy, Sep 11 2021

Status

approved