A039665 Sets of 4 consecutive numbers with equal number of divisors.

242, 243, 244, 245, 3655, 3656, 3657, 3658, 4503, 4504, 4505, 4506, 5943, 5944, 5945, 5946, 6853, 6854, 6855, 6856, 7256, 7257, 7258, 7259, 8392, 8393, 8394, 8395, 9367, 9368, 9369, 9370, 10983, 10984, 10985, 10986, 11605, 11606, 11607, 11608

Offset: 1

Author

Felice Russo

Keywords

• nonn

Comments

Taking the first entry in each set gives A006601.

References

• D. Wells, Curious and interesting numbers, Penguin Books, p. 134

Crossrefs

Cf. A000005, A005237, A005238, A006601, A049051, A006558, A019273.

Extensions

More terms from Patrick De Geest, Nov 15 1999