A358321 - OEIS

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A358321

a(n) is the index of the smallest n-gonal number with exactly n distinct prime factors.

1

11, 210, 87, 228, 1155, 7854, 66612, 395646, 2193303, 8389010, 122574155, 630341910, 6066475415

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

OFFSET

3,1

LINKS

Table of n, a(n) for n=3..15.

Eric Weisstein's World of Mathematics, Distinct Prime Factors

Eric Weisstein's World of Mathematics, Polygonal Number

CROSSREFS

Cf. A358862, A359014.

Sequence in context: A131216 A034909 A081788 * A060496 A280072 A157691

Adjacent sequences: A358318 A358319 A358320 * A358322 A358323 A358324

KEYWORD

nonn,more

AUTHOR

Ilya Gutkovskiy, Dec 12 2022

STATUS

approved