[seqfan] Help! Any formula for sequence

[Zak Seidov]

 Dear SF Gurus,

Help! Any formula for sequence

{3,13,30,88,187,525,1102,3072,6435,17917,37518,104440,218683,608733,
1274590,3547968,7428867,20679085,43298622,120526552,252362875}
Any formula, recurrency, genersting function, etc?

The same for relating sequence
4,11,23,64,134,373,781,2174,4552,12671,26531,73852,154634,430441,
901273,2508794,5253004,14622323,30616751,85225144,178447502}

Thx,
Zak

PS These are solution for some quadratic Diophantine Eq and surely should be some formula(s).