OFFSET
1,2
COMMENTS
The least integer that can be expressed as the sum of one or more consecutive numbers congruent to 1 mod 3 in exactly n ways.
Index of first occurrence of n in A333815.
LINKS
Chai Wah Wu, Table of n, a(n) for n = 1..72
Eric Weisstein's World of Mathematics, Pentagonal Number
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Apr 12 2020
EXTENSIONS
More terms from Jinyuan Wang, Apr 13 2020
STATUS
approved