A125191 -id:A125191 - cp's OEIS frontend

A127729 Primes of the form k# + (k+1)#,..,+(k+x)#+1; where k#,(k+1)#,(k+x)# are primorials numbers, members of A002110.

7, 37, 2557, 32587, 543097, 10242787, 207263519017, 13394639596851067, 41295598995285955839203627497, 29987151430893484246716697508064240936086917614616072924464106966030597

Offset: 1

Tomas Xordan, Apr 03 2007

nonn

			7=A002110(3) +1 = 6+1;37= A002110(3)+A002110(4)+1 = 6+30+1; 2557= A002110(3)+A002110(4)+A002110(5)+A002110(6)+1= 6+30+210+2310 +1; 32587=A002110(3)+A002110(4)+A002110(5)+A002110(6)+A002110(7)+1=6+30+210+2310+30030+1

Cf. A125191; A002110.

prime(a)=A002110(n)+A002110(n+1)+...A002110(n+x) +1

A127732 Primes of the form k# + (k+1)#,..,+(k+x)#+ 61; where k#,(k+1)#,(k+x)# are primorials numbers, members of A002110.

Original entry on oeis.org

67, 97, 307, 2617, 32647, 543157, 10242847, 233335717, 6703028947, 7628001653887, 311878265181097, 565918396036931688582304087, 24039065352401162580869899907532787

Offset: 1

Tomas Xordan, Apr 03 2007

nonn

			67 = A002110(3) + 61 = 6 + 61; 97 = A002110(3) + A002110(4) + 61 = 6 + 30 + 61; 307 = A002110(3) + A002110(4) + A002110(5) + 61 = 6 + 30 + 210 + 61; 2617 = A002110(3) + A002110(4) + A002110(5) + A002110(6) + 61 = 6 + 30 + 210 + 2310 + 61; 32647 = A002110(3) + A002110(4) + A002110(5) + A002110(6) + A002110(7) + 61 = 6 + 30 + 210 + 2310 + 30030 + 61;...

Cf. A125191; A002110.

Prime(a)=A002110(n)+A002110(n+1)+...A002110(n+x) +61

cp's OEIS Frontend

A127729 Primes of the form k# + (k+1)#,..,+(k+x)#+1; where k#,(k+1)#,(k+x)# are primorials numbers, members of A002110.

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