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A014368 a(n) = bc, where n = C(b,2)+C(c,1), b>c>=0. 1
20, 21, 30, 31, 32, 40, 41, 42, 43, 50, 51, 52, 53, 54, 60, 61, 62, 63, 64, 65, 70, 71, 72, 73, 74, 75, 76, 80, 81, 82, 83, 84, 85, 86, 87, 90, 91, 92, 93, 94, 95, 96, 97, 98, 100, 101, 102, 103, 104, 105, 106 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

W. Bruns and J. Herzog, Cohen-Macaulay Rings, Cambridge, 1993, p. 158.

LINKS

Table of n, a(n) for n=1..51.

CROSSREFS

Sequence in context: A218539 A295488 A008940 * A118865 A118608 A176241

Adjacent sequences:  A014365 A014366 A014367 * A014369 A014370 A014371

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified April 19 11:18 EDT 2019. Contains 322264 sequences. (Running on oeis4.)