Centered heptagonal number is centered figure number that represents a heptagon with dot in center and all other dot surrounding in heptagonal form.. The first few Centered heptagonal number are 1, 8, 22, 43, 71, 106, 148,197, 253, 316, 386, 463, 547, 638, 736, 841, 953, 1072, 1198, 1331, etc.
C2a
