Number of length 4 1..(n+2) arrays with no leading partial sum equal to a prime and no consecutive values equal.

A255719

Number of length 4 1..(n+2) arrays with no leading partial sum equal to a prime and no consecutive values equal.

Terms

    a(0) =1a(1) =6a(2) =21a(3) =81a(4) =120a(5) =342a(6) =653a(7) =1221a(8) =1729a(9) =3037a(10) =3884a(11) =6136a(12) =8650a(13) =12056a(14) =14580a(15) =20505a(16) =24083a(17) =32191a(18) =40684a(19) =51184a(20) =58455a(21) =74807a(22) =90133a(23) =110175a(24) =130476a(25) =155925a(26) =173529a(27) =209720a(28) =230413a(29) =269673

External references