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 A360836 a(n) is the least n-gonal pyramidal number that is the sum of two or more consecutive nonzero n-gonal pyramidal numbers in more than one way. 0
 12880, 18896570 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,1 COMMENTS a(4) > 10^19 if it exists. - Michael S. Branicky, Feb 23 2023 LINKS Table of n, a(n) for n=2..3. Eric Weisstein's World of Mathematics, Pyramidal Number EXAMPLE For n = 2: 12880 = 91 + ... + 903 = 300 + ... + 990. For n = 3: 18896570 = 708561 + ... + 1021384 = 2604125 + ... + 2796160. CROSSREFS Cf. A080851, A360762. Sequence in context: A251922 A184453 A233936 * A158918 A185885 A212079 Adjacent sequences: A360833 A360834 A360835 * A360837 A360838 A360839 KEYWORD nonn,bref,more AUTHOR Ilya Gutkovskiy, Feb 23 2023 STATUS approved

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Last modified June 2 20:13 EDT 2023. Contains 363100 sequences. (Running on oeis4.)