A049025 Smaller of amicable pair of Euler's first form with GCD a prime times a power of 2.

63020, 35393127088768, 40385061127552, 140119688419072, 24968174765732864, 172520482052519936, 19018879317555137878016, 76675279981847900125184, 427956927487717855380226048, 1315972969987138599682048

Offset

0,1

Comments

The sequence is ordered first on the common power of 2, then on size of the number. More entries can be found in the reference.

References

Mariano Garcia, New Amicable Pairs of Euler's First Form with Greatest Common Factor a Prime Times a Power of 2, Nieuw Arch. Wisk 17(1999), pp. 25-27

Links

Table of n, a(n) for n=0..9.

Crossrefs

Cf. A049023, A049024, A049026.

Sequence in context: A253854 A237675 A135430 * A322679 A322689 A234080

Adjacent sequences: A049022 A049023 A049024 * A049026 A049027 A049028

Keyword

nonn

Author

Floor van Lamoen

Status

approved