cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-2 of 2 results.

A152483 Even numbers which are not the sum of 2 odd semiprimes.

Original entry on oeis.org

2, 4, 6, 8, 10, 12, 14, 16, 20, 22, 26, 28, 32, 38, 52, 62
Offset: 1

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Author

Donovan Johnson, Dec 06 2008

Keywords

Comments

No more terms < 10^9. Conjectured to be complete.

Examples

			62 is in this sequence because no 2 odd semiprimes sum to 62. 64 is not in this sequence because the sum of 9 (odd semiprime) and 55 (odd semiprime) is 64.
		

Crossrefs

A152484 Odd numbers which are not the sum of an even semiprime and an odd semiprime.

Original entry on oeis.org

1, 3, 5, 7, 9, 11, 17, 33
Offset: 1

Views

Author

Donovan Johnson, Dec 06 2008

Keywords

Comments

No more terms < 10^9. Conjectured to be complete.

Examples

			33 is in this sequence because no even semiprime and odd semiprime sum to 33. 35 is not in this sequence because the sum of 10 (even semiprime) and 25 (odd semiprime) is 35.
		

Crossrefs

Showing 1-2 of 2 results.