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%I #5 Jan 11 2025 03:59:50
%S 3,3,3,3,10,14,6,8,3,4,8,3,30,11,88,14,43,50,276,17,322,20,23,26,41,
%T 29,145,32,823,35,2378,38,41,44,47,50,53,56,59,374,62,65,2386,68,71,74
%N Least k >= 3 such that A373711(n) is both k-gonal and k-gonal pyramidal.
%C For n <= 46, there is a unique k >= 3 such that A373711(n) is both k-gonal and k-gonal pyramidal. If this were true for all n, A027669 would be the sorted distinct terms of this sequence.
%F A057145(a(n),A379974(n)) = A080851(a(n)-2,A379975(n)-1) = A373711(n).
%Y Cf. A027669, A057145, A080851, A373711, A379974, A379975.
%K nonn,more
%O 1,1
%A _Pontus von Brömssen_, Jan 08 2025