Centered decagonal primes up to 420421

Centered decagonal primes: Primes of the form 5(n^2 + n) + 1.

There is 121 centered decagonal primes smaller than 420421.

Checkout centered decagonal primes up to: 100, 500, 1000, 10000.

11, 31, 61, 101, 151, 211, 281, 661, 911, 1051, 1201, 1361, 1531, 1901, 2311, 2531, 3001, 3251, 3511, 4651, 5281, 6301, 6661, 7411, 9461, 9901, 12251, 13781, 14851, 15401, 18301, 18911, 19531, 20161, 22111, 24151, 24851, 25561, 27011, 27751, 31601, 32401, 33211, 34031, 36551, 38281, 39161, 43711, 44651, 51511, 54601, 56711, 57781, 59951, 61051, 63281, 65551, 66701, 69031, 76261, 81281, 82561, 86461, 91801, 94531, 95911, 97301, 101531, 110261, 111751, 114761, 117811, 130411, 135301, 136951, 140281, 141961, 143651, 148781, 154001, 159311, 162901, 175781, 183361, 187211, 189151, 203011, 205031, 207061, 211151, 217361, 219451, 225781, 234361, 243101, 247531, 252001, 261061, 267961, 274951, 277301, 286801, 308761, 318781, 321311, 328961, 341911, 347161, 349801, 355111, 357781, 360461, 363151, 365851, 371281, 379501, 393401, 399031, 401861, 410411, 419051

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