A108467 a(n) = A108466(A025487).

1, 1, 2, 3, 4, 11, 9, 35, 25, 20, 55, 106, 132, 45, 222, 303, 566, 100, 808, 918, 827, 339, 1086, 2128, 220, 2682, 4790, 2173, 2453, 4561, 7269, 478, 8335, 21093, 5515, 13223, 17135, 7997, 23079, 1025, 29229, 24503, 22165, 21597, 82298, 13595, 59613, 59196

Offset

0,3

Comments

Number of factorizations of (n,n) into pairs (i,j) by prime signature.

Links

Table of n, a(n) for n=0..47.

Crossrefs

Cf. A108460.

Sequence in context: A117351 A343602 A357530 * A265565 A265549 A084544

Adjacent sequences: A108464 A108465 A108466 * A108468 A108469 A108470

Keyword

nonn

Author

Christian G. Bower, Jun 03 2005

Extensions

More terms from David Wasserman, May 19 2008

Status

approved