1574849domain: NPropertiesPrimalityPrimeyesAppears in sequencesINVERT transform of A008805 (triangular numbers repeated).at n=16A178320a(n) = smallest m such that A308190(m) = n, or -1 if no such m exists.at n=32A308191Indices of records in A308190.at n=24A308193Prime numbersat n=119405