A392592 Intersection of A391845 and A391866.

150, 294, 578, 1050, 1650, 1694, 1950, 2535, 2550, 2850, 3234, 3450, 3630, 3822, 4350, 4650, 4998, 5550, 5586, 6150, 6450, 6762, 7050, 7942, 7950, 8526, 8850, 8918, 9114, 9150, 9295, 10050, 10650, 10878, 10950, 10982, 11550, 11850, 12054, 12450, 12642, 13294, 13350, 13650, 13818, 14550, 15150, 15450, 15582, 16050

Offset

1,1

Comments

A369650 contains numbers k such that A003415(k) = A276085(k). It is an open question whether that sequence contains any other terms after 5005, and especially, if it contains any terms of A371083. On any such hypothetical terms x of A369650, the two functions A003415 and A276085 should satisfy all the conditions of the other function that function satisfies on the terms of A371083, namely, that A020639(x) is mapped to A053669(x), and that the divisor A003557(x) is retained in the result.

Links

Antti Karttunen, Table of n, a(n) for n = 1..10000

Formula

{k such that A053669(A003415(k)) == A020639(k), A008966(k) = 0, A359550(k) = 1 and A003557(k) | A276085(k)}.

Prog

(PARI) is_A392592(n) = (A391844(n) && is_A391866(n));

Crossrefs

Cf. A003415, A003557, A008966, A020639, A053669, A276085, A359550.

Intersection of A391844 and A391866.

Subsequence of A371083.

This contains the intersection of A369650 and A371083 as its subsequence, even though it might be empty.

Sequence in context: A207044 A292705 A391866 * A335145 A063829 A291959

Adjacent sequences: A392589 A392590 A392591 * A392593 A392594 A392595

Keyword

nonn

Author

Antti Karttunen, Jan 17 2026

Status

approved