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A307493 Primes that are both centered triangular and centered square. 0
16381, 23199907725541, 873105326726527441, 169377932722437899461, 532026300937919058017204151243671297356368598920355705257429996547710782877327451810988538831181 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Primes that are the sum of three consecutive triangular numbers and the sum of two consecutive squares.
The next term is too large to include.
LINKS
Eric Weisstein's World of Mathematics, Centered Triangular Number
Eric Weisstein's World of Mathematics, Centered Square Number
MATHEMATICA
Select[LinearRecurrence[{195, -195, 1}, {1, 85, 16381}, 43], PrimeQ[#] &]
CROSSREFS
Intersection of A027862 and A125602.
Sequence in context: A126824 A236778 A344102 * A075958 A075963 A075959
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Apr 10 2019
STATUS
approved

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Last modified June 17 00:51 EDT 2024. Contains 373432 sequences. (Running on oeis4.)