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The number 198585576189 = 9018009*22021 is the first and only known odd term in A058007 and A174292; 9018009 = A222263(79).
M. F. Hasler, Table of n, a(n) for n = 1..486 (complete sequence).
Index entries for sequences related to divisors of numbers
Union of A033870 and A033871.
Cf. A000396, A058007, A174292, A222263, A222264.
Sequence in context: A136333 A134454 A113522 * A027897 A027892 A158938
Adjacent sequences: A222259 A222260 A222261 * A222263 A222264 A222265
M. F. Hasler, Feb 21 2013
Offset corrected by Andrew Howroyd, Jan 17 2018