1,1

This sequence was inspired by A180328, but there the semiprime pq is assumed to consist of distinct primes p and q. The value of (p+1)(q+1) for each row is in A180334.

T. D. Noe and Zak Seidov, Rows n=1..36 of triangle, flattened

Sequence in context: A204541 A020157 A101237 * A030364 A044967 A298126

Adjacent sequences: A180330 A180331 A180332 * A180334 A180335 A180336

tabl,nonn

Zak Seidov and T. D. Noe, Sep 08 2010

approved