A349995 Record gaps between odd squarefree semiprimes (A046388).

6, 12, 16, 20, 22, 24, 26, 28, 32, 36, 38, 40, 44, 50, 52, 60, 64, 70, 74, 84, 90, 92, 100, 102, 116, 118, 120, 132, 136, 138, 140, 142, 146, 152, 154, 156, 164, 170, 184, 186, 210

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Lucas A. Brown, Python program.

Example

  n  A350098(n)  A350099(n)  a(n)
  1      15          21        6
  2      21          33       12
  3      95         111       16
  4     267         287       20
  5    2369        2391       22

Crossrefs

Records in A341828.

Cf. A350098 lower ends of the record gaps, A350099 upper ends of the record gaps.

Cf. A000101, A002386, A005250, A085809, A114057.

Sequence in context: A315626 A315627 A315628 * A315629 A315630 A315631

Adjacent sequences: A349992 A349993 A349994 * A349996 A349997 A349998

Keyword

nonn,hard,more

Author

Hugo Pfoertner, Dec 25 2021

Extensions

a(35)-a(41) from Lucas A. Brown, Feb 29 2024

Status

approved