A037005 Positions of the digit '6' in the decimal expansion of Pi.

7, 20, 22, 41, 69, 72, 75, 82, 98, 108, 117, 118, 127, 181, 184, 200, 211, 212, 219, 226, 234, 239, 253, 257, 258, 263, 268, 276, 277, 286, 290, 309, 310, 312, 332, 347, 350, 359, 377, 378, 387, 397, 410, 426, 436, 455, 461, 467, 505, 509, 514, 516, 517